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-rw-r--r--drivers/clk/ux500/Makefile1
-rw-r--r--drivers/clk/ux500/u8500_of_clk.c559
-rw-r--r--drivers/clk/ux500/u8540_clk.c2
-rw-r--r--drivers/gpio/gpio-samsung.c34
-rw-r--r--drivers/irqchip/irq-vic.c7
-rw-r--r--drivers/mfd/db8500-prcmu.c1
-rw-r--r--drivers/mfd/dbx500-prcmu-regs.h1
-rw-r--r--drivers/pinctrl/pinctrl-single.c388
-rw-r--r--drivers/usb/musb/ux500.c2
9 files changed, 954 insertions, 41 deletions
diff --git a/drivers/clk/ux500/Makefile b/drivers/clk/ux500/Makefile
index c6a806ed0e8c..521483f0ba33 100644
--- a/drivers/clk/ux500/Makefile
+++ b/drivers/clk/ux500/Makefile
@@ -8,6 +8,7 @@ obj-y += clk-prcmu.o
obj-y += clk-sysctrl.o
# Clock definitions
+obj-y += u8500_of_clk.o
obj-y += u8500_clk.o
obj-y += u9540_clk.o
obj-y += u8540_clk.o
diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
new file mode 100644
index 000000000000..cdeff299de26
--- /dev/null
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -0,0 +1,559 @@
+/*
+ * Clock definitions for u8500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/of.h>
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/platform_data/clk-ux500.h>
+#include "clk.h"
+
+#define PRCC_NUM_PERIPH_CLUSTERS 6
+#define PRCC_PERIPHS_PER_CLUSTER 32
+
+static struct clk *prcmu_clk[PRCMU_NUM_CLKS];
+static struct clk *prcc_pclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
+static struct clk *prcc_kclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
+
+#define PRCC_SHOW(clk, base, bit) \
+ clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit]
+#define PRCC_PCLK_STORE(clk, base, bit) \
+ prcc_pclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
+#define PRCC_KCLK_STORE(clk, base, bit) \
+ prcc_kclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
+
+struct clk *ux500_twocell_get(struct of_phandle_args *clkspec, void *data)
+{
+ struct clk **clk_data = data;
+ unsigned int base, bit;
+
+ if (clkspec->args_count != 2)
+ return ERR_PTR(-EINVAL);
+
+ base = clkspec->args[0];
+ bit = clkspec->args[1];
+
+ if (base != 1 && base != 2 && base != 3 && base != 5 && base != 6) {
+ pr_err("%s: invalid PRCC base %d\n", __func__, base);
+ return ERR_PTR(-EINVAL);
+ }
+
+ return PRCC_SHOW(clk_data, base, bit);
+}
+
+static const struct of_device_id u8500_clk_of_match[] = {
+ { .compatible = "stericsson,u8500-clks", },
+ { },
+};
+
+void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
+ u32 clkrst5_base, u32 clkrst6_base)
+{
+ struct prcmu_fw_version *fw_version;
+ struct device_node *np = NULL;
+ struct device_node *child = NULL;
+ const char *sgaclk_parent = NULL;
+ struct clk *clk, *rtc_clk, *twd_clk;
+
+ if (of_have_populated_dt())
+ np = of_find_matching_node(NULL, u8500_clk_of_match);
+ if (!np) {
+ pr_err("Either DT or U8500 Clock node not found\n");
+ return;
+ }
+
+ /* Clock sources */
+ clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
+ CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_PLLSOC0] = clk;
+
+ clk = clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1,
+ CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_PLLSOC1] = clk;
+
+ clk = clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR,
+ CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_PLLDDR] = clk;
+
+ /* FIXME: Add sys, ulp and int clocks here. */
+
+ rtc_clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
+ CLK_IS_ROOT|CLK_IGNORE_UNUSED,
+ 32768);
+
+ /* PRCMU clocks */
+ fw_version = prcmu_get_fw_version();
+ if (fw_version != NULL) {
+ switch (fw_version->project) {
+ case PRCMU_FW_PROJECT_U8500_C2:
+ case PRCMU_FW_PROJECT_U8520:
+ case PRCMU_FW_PROJECT_U8420:
+ sgaclk_parent = "soc0_pll";
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (sgaclk_parent)
+ clk = clk_reg_prcmu_gate("sgclk", sgaclk_parent,
+ PRCMU_SGACLK, 0);
+ else
+ clk = clk_reg_prcmu_gate("sgclk", NULL,
+ PRCMU_SGACLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_SGACLK] = clk;
+
+ clk = clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_UARTCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_MSP02CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_MSP1CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_I2CCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_SLIMCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER1CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER2CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER3CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER5CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER6CLK] = clk;
+
+ clk = clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_PER7CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_LCDCLK] = clk;
+
+ clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_BMLCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_HSITXCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_HSIRXCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_HDMICLK] = clk;
+
+ clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_APEATCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("apetraceclk", NULL, PRCMU_APETRACECLK,
+ CLK_IS_ROOT);
+ prcmu_clk[PRCMU_APETRACECLK] = clk;
+
+ clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_MCDECLK] = clk;
+
+ clk = clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK,
+ CLK_IS_ROOT);
+ prcmu_clk[PRCMU_IPI2CCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK,
+ CLK_IS_ROOT);
+ prcmu_clk[PRCMU_DSIALTCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_DMACLK] = clk;
+
+ clk = clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_B2R2CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_TVCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_SSPCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_RNGCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_UICCCLK] = clk;
+
+ clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, CLK_IS_ROOT);
+ prcmu_clk[PRCMU_TIMCLK] = clk;
+
+ clk = clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL, PRCMU_SDMMCCLK,
+ 100000000,
+ CLK_IS_ROOT|CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_SDMMCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi_pll", "hdmiclk",
+ PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_PLLDSI] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi0clk", "dsi_pll",
+ PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI0CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi1clk", "dsi_pll",
+ PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI1CLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi0escclk", "tvclk",
+ PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI0ESCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi1escclk", "tvclk",
+ PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI1ESCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable("dsi2escclk", "tvclk",
+ PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE);
+ prcmu_clk[PRCMU_DSI2ESCCLK] = clk;
+
+ clk = clk_reg_prcmu_scalable_rate("armss", NULL,
+ PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+ prcmu_clk[PRCMU_ARMSS] = clk;
+
+ twd_clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
+ CLK_IGNORE_UNUSED, 1, 2);
+
+ /*
+ * FIXME: Add special handled PRCMU clocks here:
+ * 1. clkout0yuv, use PRCMU as parent + need regulator + pinctrl.
+ * 2. ab9540_clkout1yuv, see clkout0yuv
+ */
+
+ /* PRCC P-clocks */
+ clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 1, 0);
+
+ clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 1, 1);
+
+ clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 1, 2);
+
+ clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 1, 3);
+
+ clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 1, 4);
+
+ clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 1, 5);
+
+ clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 1, 6);
+
+ clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base,
+ BIT(7), 0);
+ PRCC_PCLK_STORE(clk, 1, 7);
+
+ clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base,
+ BIT(8), 0);
+ PRCC_PCLK_STORE(clk, 1, 8);
+
+ clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base,
+ BIT(9), 0);
+ PRCC_PCLK_STORE(clk, 1, 9);
+
+ clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base,
+ BIT(10), 0);
+ PRCC_PCLK_STORE(clk, 1, 10);
+
+ clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base,
+ BIT(11), 0);
+ PRCC_PCLK_STORE(clk, 1, 11);
+
+ clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 2, 0);
+
+ clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 2, 1);
+
+ clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 2, 2);
+
+ clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 2, 3);
+
+ clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 2, 4);
+
+ clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 2, 5);
+
+ clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 2, 6);
+
+ clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base,
+ BIT(7), 0);
+ PRCC_PCLK_STORE(clk, 2, 7);
+
+ clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base,
+ BIT(8), 0);
+ PRCC_PCLK_STORE(clk, 2, 8);
+
+ clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base,
+ BIT(9), 0);
+ PRCC_PCLK_STORE(clk, 2, 9);
+
+ clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base,
+ BIT(10), 0);
+ PRCC_PCLK_STORE(clk, 2, 10);
+
+ clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base,
+ BIT(11), 0);
+ PRCC_PCLK_STORE(clk, 2, 11);
+
+ clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base,
+ BIT(12), 0);
+ PRCC_PCLK_STORE(clk, 2, 12);
+
+ clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 3, 0);
+
+ clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 3, 1);
+
+ clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 3, 2);
+
+ clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 3, 3);
+
+ clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 3, 4);
+
+ clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 3, 5);
+
+ clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 3, 6);
+
+ clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base,
+ BIT(7), 0);
+ PRCC_PCLK_STORE(clk, 3, 7);
+
+ clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base,
+ BIT(8), 0);
+ PRCC_PCLK_STORE(clk, 3, 8);
+
+ clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 5, 0);
+
+ clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 5, 1);
+
+ clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base,
+ BIT(0), 0);
+ PRCC_PCLK_STORE(clk, 6, 0);
+
+ clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base,
+ BIT(1), 0);
+ PRCC_PCLK_STORE(clk, 6, 1);
+
+ clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base,
+ BIT(2), 0);
+ PRCC_PCLK_STORE(clk, 6, 2);
+
+ clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base,
+ BIT(3), 0);
+ PRCC_PCLK_STORE(clk, 6, 3);
+
+ clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base,
+ BIT(4), 0);
+ PRCC_PCLK_STORE(clk, 6, 4);
+
+ clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base,
+ BIT(5), 0);
+ PRCC_PCLK_STORE(clk, 6, 5);
+
+ clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base,
+ BIT(6), 0);
+ PRCC_PCLK_STORE(clk, 6, 6);
+
+ clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base,
+ BIT(7), 0);
+ PRCC_PCLK_STORE(clk, 6, 7);
+
+ /* PRCC K-clocks
+ *
+ * FIXME: Some drivers requires PERPIH[n| to be automatically enabled
+ * by enabling just the K-clock, even if it is not a valid parent to
+ * the K-clock. Until drivers get fixed we might need some kind of
+ * "parent muxed join".
+ */
+
+ /* Periph1 */
+ clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk",
+ clkrst1_base, BIT(0), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 0);
+
+ clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk",
+ clkrst1_base, BIT(1), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 1);
+
+ clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
+ clkrst1_base, BIT(2), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 2);
+
+ clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
+ clkrst1_base, BIT(3), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 3);
+
+ clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
+ clkrst1_base, BIT(4), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 4);
+
+ clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
+ clkrst1_base, BIT(5), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 5);
+
+ clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
+ clkrst1_base, BIT(6), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 6);
+
+ clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
+ clkrst1_base, BIT(8), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 8);
+
+ clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
+ clkrst1_base, BIT(9), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 9);
+
+ clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
+ clkrst1_base, BIT(10), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 1, 10);
+
+ /* Periph2 */
+ clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
+ clkrst2_base, BIT(0), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 0);
+
+ clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
+ clkrst2_base, BIT(2), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 2);
+
+ clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
+ clkrst2_base, BIT(3), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 3);
+
+ clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
+ clkrst2_base, BIT(4), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 4);
+
+ clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk",
+ clkrst2_base, BIT(5), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 2, 5);
+
+ /* Note that rate is received from parent. */
+ clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk",
+ clkrst2_base, BIT(6),
+ CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+ PRCC_KCLK_STORE(clk, 2, 6);
+
+ clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk",
+ clkrst2_base, BIT(7),
+ CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+ PRCC_KCLK_STORE(clk, 2, 7);
+
+ /* Periph3 */
+ clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk",
+ clkrst3_base, BIT(1), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 1);
+
+ clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
+ clkrst3_base, BIT(2), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 2);
+
+ clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
+ clkrst3_base, BIT(3), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 3);
+
+ clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
+ clkrst3_base, BIT(4), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 4);
+
+ clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k",
+ clkrst3_base, BIT(5), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 5);
+
+ clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk",
+ clkrst3_base, BIT(6), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 6);
+
+ clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk",
+ clkrst3_base, BIT(7), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 3, 7);
+
+ /* Periph6 */
+ clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
+ clkrst6_base, BIT(0), CLK_SET_RATE_GATE);
+ PRCC_KCLK_STORE(clk, 6, 0);
+
+ for_each_child_of_node(np, child) {
+ static struct clk_onecell_data clk_data;
+
+ if (!of_node_cmp(child->name, "prcmu-clock")) {
+ clk_data.clks = prcmu_clk;
+ clk_data.clk_num = ARRAY_SIZE(prcmu_clk);
+ of_clk_add_provider(child, of_clk_src_onecell_get, &clk_data);
+ }
+ if (!of_node_cmp(child->name, "prcc-periph-clock"))
+ of_clk_add_provider(child, ux500_twocell_get, prcc_pclk);
+
+ if (!of_node_cmp(child->name, "prcc-kernel-clock"))
+ of_clk_add_provider(child, ux500_twocell_get, prcc_kclk);
+
+ if (!of_node_cmp(child->name, "rtc32k-clock"))
+ of_clk_add_provider(child, of_clk_src_simple_get, rtc_clk);
+
+ if (!of_node_cmp(child->name, "smp-twd-clock"))
+ of_clk_add_provider(child, of_clk_src_simple_get, twd_clk);
+ }
+}
diff --git a/drivers/clk/ux500/u8540_clk.c b/drivers/clk/ux500/u8540_clk.c
index f26258869deb..20c8add90d11 100644
--- a/drivers/clk/ux500/u8540_clk.c
+++ b/drivers/clk/ux500/u8540_clk.c
@@ -83,7 +83,7 @@ void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
clk_register_clkdev(clk, NULL, "lcd");
clk_register_clkdev(clk, "lcd", "mcde");
- clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BML8580CLK,
+ clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK,
CLK_IS_ROOT);
clk_register_clkdev(clk, NULL, "bml");
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index f6f1c7d244c4..76e02b9460e6 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -2082,34 +2082,14 @@ static __init int samsung_gpiolib_init(void)
int i, nr_chips;
int group = 0;
-#if defined(CONFIG_PINCTRL_EXYNOS) || defined(CONFIG_PINCTRL_EXYNOS5440)
/*
- * This gpio driver includes support for device tree support and there
- * are platforms using it. In order to maintain compatibility with those
- * platforms, and to allow non-dt Exynos4210 platforms to use this
- * gpiolib support, a check is added to find out if there is a active
- * pin-controller driver support available. If it is available, this
- * gpiolib support is ignored and the gpiolib support available in
- * pin-controller driver is used. This is a temporary check and will go
- * away when all of the Exynos4210 platforms have switched to using
- * device tree and the pin-ctrl driver.
- */
- struct device_node *pctrl_np;
- static const struct of_device_id exynos_pinctrl_ids[] = {
- { .compatible = "samsung,s3c2412-pinctrl", },
- { .compatible = "samsung,s3c2416-pinctrl", },
- { .compatible = "samsung,s3c2440-pinctrl", },
- { .compatible = "samsung,s3c2450-pinctrl", },
- { .compatible = "samsung,exynos4210-pinctrl", },
- { .compatible = "samsung,exynos4x12-pinctrl", },
- { .compatible = "samsung,exynos5250-pinctrl", },
- { .compatible = "samsung,exynos5440-pinctrl", },
- { }
- };
- for_each_matching_node(pctrl_np, exynos_pinctrl_ids)
- if (pctrl_np && of_device_is_available(pctrl_np))
- return -ENODEV;
-#endif
+ * Currently there are two drivers that can provide GPIO support for
+ * Samsung SoCs. For device tree enabled platforms, the new
+ * pinctrl-samsung driver is used, providing both GPIO and pin control
+ * interfaces. For legacy (non-DT) platforms this driver is used.
+ */
+ if (of_have_populated_dt())
+ return -ENODEV;
samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index 2bbb00404cf5..8e21ae0bab46 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -469,6 +469,8 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
int __init vic_of_init(struct device_node *node, struct device_node *parent)
{
void __iomem *regs;
+ u32 interrupt_mask = ~0;
+ u32 wakeup_mask = ~0;
if (WARN(parent, "non-root VICs are not supported"))
return -EINVAL;
@@ -477,10 +479,13 @@ int __init vic_of_init(struct device_node *node, struct device_node *parent)
if (WARN_ON(!regs))
return -EIO;
+ of_property_read_u32(node, "valid-mask", &interrupt_mask);
+ of_property_read_u32(node, "valid-wakeup-mask", &wakeup_mask);
+
/*
* Passing 0 as first IRQ makes the simple domain allocate descriptors
*/
- __vic_init(regs, 0, ~0, ~0, node);
+ __vic_init(regs, 0, interrupt_mask, wakeup_mask, node);
return 0;
}
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 53f371dcbb6e..b9ce60c301de 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -480,7 +480,6 @@ static struct clk_mgt clk_mgt[PRCMU_NUM_REG_CLOCKS] = {
CLK_MGT_ENTRY(PER6CLK, PLL_DIV, true),
CLK_MGT_ENTRY(PER7CLK, PLL_DIV, true),
CLK_MGT_ENTRY(LCDCLK, PLL_FIX, true),
- CLK_MGT_ENTRY(BML8580CLK, PLL_DIV, true),
CLK_MGT_ENTRY(BMLCLK, PLL_DIV, true),
CLK_MGT_ENTRY(HSITXCLK, PLL_DIV, true),
CLK_MGT_ENTRY(HSIRXCLK, PLL_DIV, true),
diff --git a/drivers/mfd/dbx500-prcmu-regs.h b/drivers/mfd/dbx500-prcmu-regs.h
index 4f6f0fa5d3b7..7cc32a8ff01c 100644
--- a/drivers/mfd/dbx500-prcmu-regs.h
+++ b/drivers/mfd/dbx500-prcmu-regs.h
@@ -32,7 +32,6 @@
#define PRCM_PER7CLK_MGT (0x040)
#define PRCM_LCDCLK_MGT (0x044)
#define PRCM_BMLCLK_MGT (0x04C)
-#define PRCM_BML8580CLK_MGT (0x108)
#define PRCM_HSITXCLK_MGT (0x050)
#define PRCM_HSIRXCLK_MGT (0x054)
#define PRCM_HDMICLK_MGT (0x058)
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index a82ace4d9a20..0846922b2316 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -15,15 +15,21 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/list.h>
+#include <linux/interrupt.h>
+
+#include <linux/irqchip/chained_irq.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/platform_data/pinctrl-single.h>
+
#include "core.h"
#include "pinconf.h"
@@ -150,19 +156,36 @@ struct pcs_name {
};
/**
+ * struct pcs_soc_data - SoC specific settings
+ * @flags: initial SoC specific PCS_FEAT_xxx values
+ * @irq: optional interrupt for the controller
+ * @irq_enable_mask: optional SoC specific interrupt enable mask
+ * @irq_status_mask: optional SoC specific interrupt status mask
+ * @rearm: optional SoC specific wake-up rearm function
+ */
+struct pcs_soc_data {
+ unsigned flags;
+ int irq;
+ unsigned irq_enable_mask;
+ unsigned irq_status_mask;
+ void (*rearm)(void);
+};
+
+/**
* struct pcs_device - pinctrl device instance
* @res: resources
* @base: virtual address of the controller
* @size: size of the ioremapped area
* @dev: device entry
* @pctl: pin controller device
+ * @flags: mask of PCS_FEAT_xxx values
+ * @lock: spinlock for register access
* @mutex: mutex protecting the lists
* @width: bits per mux register
* @fmask: function register mask
* @fshift: function register shift
* @foff: value to turn mux off
* @fmax: max number of functions in fmask
- * @is_pinconf: whether supports pinconf
* @bits_per_pin:number of bits per pin
* @names: array of register names for pins
* @pins: physical pins on the SoC
@@ -171,6 +194,9 @@ struct pcs_name {
* @pingroups: list of pingroups
* @functions: list of functions
* @gpiofuncs: list of gpio functions
+ * @irqs: list of interrupt registers
+ * @chip: chip container for this instance
+ * @domain: IRQ domain for this instance
* @ngroups: number of pingroups
* @nfuncs: number of functions
* @desc: pin controller descriptor
@@ -183,6 +209,12 @@ struct pcs_device {
unsigned size;
struct device *dev;
struct pinctrl_dev *pctl;
+ unsigned flags;
+#define PCS_QUIRK_SHARED_IRQ (1 << 2)
+#define PCS_FEAT_IRQ (1 << 1)
+#define PCS_FEAT_PINCONF (1 << 0)
+ struct pcs_soc_data socdata;
+ raw_spinlock_t lock;
struct mutex mutex;
unsigned width;
unsigned fmask;
@@ -190,7 +222,6 @@ struct pcs_device {
unsigned foff;
unsigned fmax;
bool bits_per_mux;
- bool is_pinconf;
unsigned bits_per_pin;
struct pcs_name *names;
struct pcs_data pins;
@@ -199,6 +230,9 @@ struct pcs_device {
struct list_head pingroups;
struct list_head functions;
struct list_head gpiofuncs;
+ struct list_head irqs;
+ struct irq_chip chip;
+ struct irq_domain *domain;
unsigned ngroups;
unsigned nfuncs;
struct pinctrl_desc desc;
@@ -206,6 +240,10 @@ struct pcs_device {
void (*write)(unsigned val, void __iomem *reg);
};
+#define PCS_QUIRK_HAS_SHARED_IRQ (pcs->flags & PCS_QUIRK_SHARED_IRQ)
+#define PCS_HAS_IRQ (pcs->flags & PCS_FEAT_IRQ)
+#define PCS_HAS_PINCONF (pcs->flags & PCS_FEAT_PINCONF)
+
static int pcs_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin,
unsigned long *config);
static int pcs_pinconf_set(struct pinctrl_dev *pctldev, unsigned pin,
@@ -429,9 +467,11 @@ static int pcs_enable(struct pinctrl_dev *pctldev, unsigned fselector,
for (i = 0; i < func->nvals; i++) {
struct pcs_func_vals *vals;
+ unsigned long flags;
unsigned val, mask;
vals = &func->vals[i];
+ raw_spin_lock_irqsave(&pcs->lock, flags);
val = pcs->read(vals->reg);
if (pcs->bits_per_mux)
@@ -442,6 +482,7 @@ static int pcs_enable(struct pinctrl_dev *pctldev, unsigned fselector,
val &= ~mask;
val |= (vals->val & mask);
pcs->write(val, vals->reg);
+ raw_spin_unlock_irqrestore(&pcs->lock, flags);
}
return 0;
@@ -483,13 +524,16 @@ static void pcs_disable(struct pinctrl_dev *pctldev, unsigned fselector,
for (i = 0; i < func->nvals; i++) {
struct pcs_func_vals *vals;
+ unsigned long flags;
unsigned val;
vals = &func->vals[i];
+ raw_spin_lock_irqsave(&pcs->lock, flags);
val = pcs->read(vals->reg);
val &= ~pcs->fmask;
val |= pcs->foff << pcs->fshift;
pcs->write(val, vals->reg);
+ raw_spin_unlock_irqrestore(&pcs->lock, flags);
}
}
@@ -1060,7 +1104,7 @@ static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np,
};
/* If pinconf isn't supported, don't parse properties in below. */
- if (!pcs->is_pinconf)
+ if (!PCS_HAS_PINCONF)
return 0;
/* cacluate how much properties are supported in current node */
@@ -1184,7 +1228,7 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs,
(*map)->data.mux.group = np->name;
(*map)->data.mux.function = np->name;
- if (pcs->is_pinconf) {
+ if (PCS_HAS_PINCONF) {
res = pcs_parse_pinconf(pcs, np, function, map);
if (res)
goto free_pingroups;
@@ -1305,7 +1349,7 @@ static int pcs_parse_bits_in_pinctrl_entry(struct pcs_device *pcs,
(*map)->data.mux.group = np->name;
(*map)->data.mux.function = np->name;
- if (pcs->is_pinconf) {
+ if (PCS_HAS_PINCONF) {
dev_err(pcs->dev, "pinconf not supported\n");
goto free_pingroups;
}
@@ -1440,11 +1484,33 @@ static void pcs_free_pingroups(struct pcs_device *pcs)
}
/**
+ * pcs_irq_free() - free interrupt
+ * @pcs: pcs driver instance
+ */
+static void pcs_irq_free(struct pcs_device *pcs)
+{
+ struct pcs_soc_data *pcs_soc = &pcs->socdata;
+
+ if (pcs_soc->irq < 0)
+ return;
+
+ if (pcs->domain)
+ irq_domain_remove(pcs->domain);
+
+ if (PCS_QUIRK_HAS_SHARED_IRQ)
+ free_irq(pcs_soc->irq, pcs_soc);
+ else
+ irq_set_chained_handler(pcs_soc->irq, NULL);
+}
+
+/**
* pcs_free_resources() - free memory used by this driver
* @pcs: pcs driver instance
*/
static void pcs_free_resources(struct pcs_device *pcs)
{
+ pcs_irq_free(pcs);
+
if (pcs->pctl)
pinctrl_unregister(pcs->pctl);
@@ -1493,6 +1559,268 @@ static int pcs_add_gpio_func(struct device_node *node, struct pcs_device *pcs)
}
return ret;
}
+/**
+ * @reg: virtual address of interrupt register
+ * @hwirq: hardware irq number
+ * @irq: virtual irq number
+ * @node: list node
+ */
+struct pcs_interrupt {
+ void __iomem *reg;
+ irq_hw_number_t hwirq;
+ unsigned int irq;
+ struct list_head node;
+};
+
+/**
+ * pcs_irq_set() - enables or disables an interrupt
+ *
+ * Note that this currently assumes one interrupt per pinctrl
+ * register that is typically used for wake-up events.
+ */
+static inline void pcs_irq_set(struct pcs_soc_data *pcs_soc,
+ int irq, const bool enable)
+{
+ struct pcs_device *pcs;
+ struct list_head *pos;
+ unsigned mask;
+
+ pcs = container_of(pcs_soc, struct pcs_device, socdata);
+ list_for_each(pos, &pcs->irqs) {
+ struct pcs_interrupt *pcswi;
+ unsigned soc_mask;
+
+ pcswi = list_entry(pos, struct pcs_interrupt, node);
+ if (irq != pcswi->irq)
+ continue;
+
+ soc_mask = pcs_soc->irq_enable_mask;
+ raw_spin_lock(&pcs->lock);
+ mask = pcs->read(pcswi->reg);
+ if (enable)
+ mask |= soc_mask;
+ else
+ mask &= ~soc_mask;
+ pcs->write(mask, pcswi->reg);
+ raw_spin_unlock(&pcs->lock);
+ }
+}
+
+/**
+ * pcs_irq_mask() - mask pinctrl interrupt
+ * @d: interrupt data
+ */
+static void pcs_irq_mask(struct irq_data *d)
+{
+ struct pcs_soc_data *pcs_soc = irq_data_get_irq_chip_data(d);
+
+ pcs_irq_set(pcs_soc, d->irq, false);
+}
+
+/**
+ * pcs_irq_unmask() - unmask pinctrl interrupt
+ * @d: interrupt data
+ */
+static void pcs_irq_unmask(struct irq_data *d)
+{
+ struct pcs_soc_data *pcs_soc = irq_data_get_irq_chip_data(d);
+
+ pcs_irq_set(pcs_soc, d->irq, true);
+ if (pcs_soc->rearm)
+ pcs_soc->rearm();
+}
+
+/**
+ * pcs_irq_set_wake() - toggle the suspend and resume wake up
+ * @d: interrupt data
+ * @state: wake-up state
+ *
+ * Note that this should be called only for suspend and resume.
+ * For runtime PM, the wake-up events should be enabled by default.
+ */
+static int pcs_irq_set_wake(struct irq_data *d, unsigned int state)
+{
+ if (state)
+ pcs_irq_unmask(d);
+ else
+ pcs_irq_mask(d);
+
+ return 0;
+}
+
+/**
+ * pcs_irq_handle() - common interrupt handler
+ * @pcs_irq: interrupt data
+ *
+ * Note that this currently assumes we have one interrupt bit per
+ * mux register. This interrupt is typically used for wake-up events.
+ * For more complex interrupts different handlers can be specified.
+ */
+static int pcs_irq_handle(struct pcs_soc_data *pcs_soc)
+{
+ struct pcs_device *pcs;
+ struct list_head *pos;
+ int count = 0;
+
+ pcs = container_of(pcs_soc, struct pcs_device, socdata);
+ list_for_each(pos, &pcs->irqs) {
+ struct pcs_interrupt *pcswi;
+ unsigned mask;
+
+ pcswi = list_entry(pos, struct pcs_interrupt, node);
+ raw_spin_lock(&pcs->lock);
+ mask = pcs->read(pcswi->reg);
+ raw_spin_unlock(&pcs->lock);
+ if (mask & pcs_soc->irq_status_mask) {
+ generic_handle_irq(irq_find_mapping(pcs->domain,
+ pcswi->hwirq));
+ count++;
+ }
+ }
+
+ /*
+ * For debugging on omaps, you may want to call pcs_soc->rearm()
+ * here to see wake-up interrupts during runtime also.
+ */
+
+ return count;
+}
+
+/**
+ * pcs_irq_handler() - handler for the shared interrupt case
+ * @irq: interrupt
+ * @d: data
+ *
+ * Use this for cases where multiple instances of
+ * pinctrl-single share a single interrupt like on omaps.
+ */
+static irqreturn_t pcs_irq_handler(int irq, void *d)
+{
+ struct pcs_soc_data *pcs_soc = d;
+
+ return pcs_irq_handle(pcs_soc) ? IRQ_HANDLED : IRQ_NONE;
+}
+
+/**
+ * pcs_irq_handle() - handler for the dedicated chained interrupt case
+ * @irq: interrupt
+ * @desc: interrupt descriptor
+ *
+ * Use this if you have a separate interrupt for each
+ * pinctrl-single instance.
+ */
+static void pcs_irq_chain_handler(unsigned int irq, struct irq_desc *desc)
+{
+ struct pcs_soc_data *pcs_soc = irq_desc_get_handler_data(desc);
+ struct irq_chip *chip;
+ int res;
+
+ chip = irq_get_chip(irq);
+ chained_irq_enter(chip, desc);
+ res = pcs_irq_handle(pcs_soc);
+ /* REVISIT: export and add handle_bad_irq(irq, desc)? */
+ chained_irq_exit(chip, desc);
+
+ return;
+}
+
+static int pcs_irqdomain_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hwirq)
+{
+ struct pcs_soc_data *pcs_soc = d->host_data;
+ struct pcs_device *pcs;
+ struct pcs_interrupt *pcswi;
+
+ pcs = container_of(pcs_soc, struct pcs_device, socdata);
+ pcswi = devm_kzalloc(pcs->dev, sizeof(*pcswi), GFP_KERNEL);
+ if (!pcswi)
+ return -ENOMEM;
+
+ pcswi->reg = pcs->base + hwirq;
+ pcswi->hwirq = hwirq;
+ pcswi->irq = irq;
+
+ mutex_lock(&pcs->mutex);
+ list_add_tail(&pcswi->node, &pcs->irqs);
+ mutex_unlock(&pcs->mutex);
+
+ irq_set_chip_data(irq, pcs_soc);
+ irq_set_chip_and_handler(irq, &pcs->chip,
+ handle_level_irq);
+
+#ifdef CONFIG_ARM
+ set_irq_flags(irq, IRQF_VALID);
+#else
+ irq_set_noprobe(irq);
+#endif
+
+ return 0;
+}
+
+static struct irq_domain_ops pcs_irqdomain_ops = {
+ .map = pcs_irqdomain_map,
+ .xlate = irq_domain_xlate_onecell,
+};
+
+/**
+ * pcs_irq_init_chained_handler() - set up a chained interrupt handler
+ * @pcs: pcs driver instance
+ * @np: device node pointer
+ */
+static int pcs_irq_init_chained_handler(struct pcs_device *pcs,
+ struct device_node *np)
+{
+ struct pcs_soc_data *pcs_soc = &pcs->socdata;
+ const char *name = "pinctrl";
+ int num_irqs;
+
+ if (!pcs_soc->irq_enable_mask ||
+ !pcs_soc->irq_status_mask) {
+ pcs_soc->irq = -1;
+ return -EINVAL;
+ }
+
+ INIT_LIST_HEAD(&pcs->irqs);
+ pcs->chip.name = name;
+ pcs->chip.irq_ack = pcs_irq_mask;
+ pcs->chip.irq_mask = pcs_irq_mask;
+ pcs->chip.irq_unmask = pcs_irq_unmask;
+ pcs->chip.irq_set_wake = pcs_irq_set_wake;
+
+ if (PCS_QUIRK_HAS_SHARED_IRQ) {
+ int res;
+
+ res = request_irq(pcs_soc->irq, pcs_irq_handler,
+ IRQF_SHARED | IRQF_NO_SUSPEND,
+ name, pcs_soc);
+ if (res) {
+ pcs_soc->irq = -1;
+ return res;
+ }
+ } else {
+ irq_set_handler_data(pcs_soc->irq, pcs_soc);
+ irq_set_chained_handler(pcs_soc->irq,
+ pcs_irq_chain_handler);
+ }
+
+ /*
+ * We can use the register offset as the hardirq
+ * number as irq_domain_add_simple maps them lazily.
+ * This way we can easily support more than one
+ * interrupt per function if needed.
+ */
+ num_irqs = pcs->size;
+
+ pcs->domain = irq_domain_add_simple(np, num_irqs, 0,
+ &pcs_irqdomain_ops,
+ pcs_soc);
+ if (!pcs->domain) {
+ irq_set_chained_handler(pcs_soc->irq, NULL);
+ return -EINVAL;
+ }
+
+ return 0;
+}
#ifdef CONFIG_PM
static int pinctrl_single_suspend(struct platform_device *pdev,
@@ -1523,8 +1851,10 @@ static int pcs_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *match;
+ struct pcs_pdata *pdata;
struct resource *res;
struct pcs_device *pcs;
+ const struct pcs_soc_data *soc;
int ret;
match = of_match_device(pcs_of_match, &pdev->dev);
@@ -1537,11 +1867,14 @@ static int pcs_probe(struct platform_device *pdev)
return -ENOMEM;
}
pcs->dev = &pdev->dev;
+ raw_spin_lock_init(&pcs->lock);
mutex_init(&pcs->mutex);
INIT_LIST_HEAD(&pcs->pingroups);
INIT_LIST_HEAD(&pcs->functions);
INIT_LIST_HEAD(&pcs->gpiofuncs);
- pcs->is_pinconf = match->data;
+ soc = match->data;
+ pcs->flags = soc->flags;
+ memcpy(&pcs->socdata, soc, sizeof(*soc));
PCS_GET_PROP_U32("pinctrl-single,register-width", &pcs->width,
"register width not specified\n");
@@ -1610,7 +1943,7 @@ static int pcs_probe(struct platform_device *pdev)
pcs->desc.name = DRIVER_NAME;
pcs->desc.pctlops = &pcs_pinctrl_ops;
pcs->desc.pmxops = &pcs_pinmux_ops;
- if (pcs->is_pinconf)
+ if (PCS_HAS_PINCONF)
pcs->desc.confops = &pcs_pinconf_ops;
pcs->desc.owner = THIS_MODULE;
@@ -1629,6 +1962,27 @@ static int pcs_probe(struct platform_device *pdev)
if (ret < 0)
goto free;
+ pcs->socdata.irq = irq_of_parse_and_map(np, 0);
+ if (pcs->socdata.irq)
+ pcs->flags |= PCS_FEAT_IRQ;
+
+ /* We still need auxdata for some omaps for PRM interrupts */
+ pdata = dev_get_platdata(&pdev->dev);
+ if (pdata) {
+ if (pdata->rearm)
+ pcs->socdata.rearm = pdata->rearm;
+ if (pdata->irq) {
+ pcs->socdata.irq = pdata->irq;
+ pcs->flags |= PCS_FEAT_IRQ;
+ }
+ }
+
+ if (PCS_HAS_IRQ) {
+ ret = pcs_irq_init_chained_handler(pcs, np);
+ if (ret < 0)
+ dev_warn(pcs->dev, "initialized with no interrupts\n");
+ }
+
dev_info(pcs->dev, "%i pins at pa %p size %u\n",
pcs->desc.npins, pcs->base, pcs->size);
@@ -1652,9 +2006,25 @@ static int pcs_remove(struct platform_device *pdev)
return 0;
}
+static const struct pcs_soc_data pinctrl_single_omap_wkup = {
+ .flags = PCS_QUIRK_SHARED_IRQ,
+ .irq_enable_mask = (1 << 14), /* OMAP_WAKEUP_EN */
+ .irq_status_mask = (1 << 15), /* OMAP_WAKEUP_EVENT */
+};
+
+static const struct pcs_soc_data pinctrl_single = {
+};
+
+static const struct pcs_soc_data pinconf_single = {
+ .flags = PCS_FEAT_PINCONF,
+};
+
static struct of_device_id pcs_of_match[] = {
- { .compatible = "pinctrl-single", .data = (void *)false },
- { .compatible = "pinconf-single", .data = (void *)true },
+ { .compatible = "ti,omap3-padconf", .data = &pinctrl_single_omap_wkup },
+ { .compatible = "ti,omap4-padconf", .data = &pinctrl_single_omap_wkup },
+ { .compatible = "ti,omap5-padconf", .data = &pinctrl_single_omap_wkup },
+ { .compatible = "pinctrl-single", .data = &pinctrl_single },
+ { .compatible = "pinconf-single", .data = &pinconf_single },
{ },
};
MODULE_DEVICE_TABLE(of, pcs_of_match);
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index f483d1924c28..122446bf1664 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -259,7 +259,7 @@ static int ux500_probe(struct platform_device *pdev)
goto err1;
}
- clk = clk_get(&pdev->dev, "usb");
+ clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "failed to get clock\n");
ret = PTR_ERR(clk);
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