diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-img-spfi.c | 2 | ||||
| -rw-r--r-- | drivers/spi/spi-mt65xx.c | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-pxa2xx-pci.c | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-qup.c | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-sh-msiof.c | 3 | ||||
| -rw-r--r-- | drivers/spi/spi-st-ssc4.c | 36 | ||||
| -rw-r--r-- | drivers/spi/spi.c | 10 |
7 files changed, 17 insertions, 37 deletions
diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index 823cbc92d1e7..7a37090dabbe 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -720,8 +720,6 @@ static int img_spfi_remove(struct platform_device *pdev) clk_disable_unprepare(spfi->sys_clk); } - spi_master_put(master); - return 0; } diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c index 0be89e052428..899d7a8f0889 100644 --- a/drivers/spi/spi-mt65xx.c +++ b/drivers/spi/spi-mt65xx.c @@ -685,7 +685,6 @@ static int mtk_spi_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); mtk_spi_reset(mdata); - spi_master_put(master); return 0; } diff --git a/drivers/spi/spi-pxa2xx-pci.c b/drivers/spi/spi-pxa2xx-pci.c index f3df522db93b..58d2d48e16a5 100644 --- a/drivers/spi/spi-pxa2xx-pci.c +++ b/drivers/spi/spi-pxa2xx-pci.c @@ -214,6 +214,7 @@ static int pxa2xx_spi_pci_probe(struct pci_dev *dev, return PTR_ERR(ssp->clk); memset(&pi, 0, sizeof(pi)); + pi.fwnode = dev->dev.fwnode; pi.parent = &dev->dev; pi.name = "pxa2xx-spi"; pi.id = ssp->port_id; diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c index c338ef1136f6..7f1555621f8e 100644 --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -1030,7 +1030,6 @@ static int spi_qup_remove(struct platform_device *pdev) pm_runtime_put_noidle(&pdev->dev); pm_runtime_disable(&pdev->dev); - spi_master_put(master); return 0; } diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c index 0f83ad1d5a58..1de3a772eb7d 100644 --- a/drivers/spi/spi-sh-msiof.c +++ b/drivers/spi/spi-sh-msiof.c @@ -262,6 +262,9 @@ static void sh_msiof_spi_set_clk_regs(struct sh_msiof_spi_priv *p, for (k = 0; k < ARRAY_SIZE(sh_msiof_spi_div_table); k++) { brps = DIV_ROUND_UP(div, sh_msiof_spi_div_table[k].div); + /* SCR_BRDV_DIV_1 is valid only if BRPS is x 1/1 or x 1/2 */ + if (sh_msiof_spi_div_table[k].div == 1 && brps > 2) + continue; if (brps <= 32) /* max of brdv is 32 */ break; } diff --git a/drivers/spi/spi-st-ssc4.c b/drivers/spi/spi-st-ssc4.c index d5adf9f31602..a56eca0e95a6 100644 --- a/drivers/spi/spi-st-ssc4.c +++ b/drivers/spi/spi-st-ssc4.c @@ -68,32 +68,6 @@ struct spi_st { struct completion done; }; -static int spi_st_clk_enable(struct spi_st *spi_st) -{ - /* - * Current platforms use one of the core clocks for SPI and I2C. - * If we attempt to disable the clock, the system will hang. - * - * TODO: Remove this when platform supports power domains. - */ - return 0; - - return clk_prepare_enable(spi_st->clk); -} - -static void spi_st_clk_disable(struct spi_st *spi_st) -{ - /* - * Current platforms use one of the core clocks for SPI and I2C. - * If we attempt to disable the clock, the system will hang. - * - * TODO: Remove this when platform supports power domains. - */ - return; - - clk_disable_unprepare(spi_st->clk); -} - /* Load the TX FIFO */ static void ssc_write_tx_fifo(struct spi_st *spi_st) { @@ -349,7 +323,7 @@ static int spi_st_probe(struct platform_device *pdev) goto put_master; } - ret = spi_st_clk_enable(spi_st); + ret = clk_prepare_enable(spi_st->clk); if (ret) goto put_master; @@ -408,7 +382,7 @@ static int spi_st_probe(struct platform_device *pdev) return 0; clk_disable: - spi_st_clk_disable(spi_st); + clk_disable_unprepare(spi_st->clk); put_master: spi_master_put(master); return ret; @@ -419,7 +393,7 @@ static int spi_st_remove(struct platform_device *pdev) struct spi_master *master = platform_get_drvdata(pdev); struct spi_st *spi_st = spi_master_get_devdata(master); - spi_st_clk_disable(spi_st); + clk_disable_unprepare(spi_st->clk); pinctrl_pm_select_sleep_state(&pdev->dev); @@ -435,7 +409,7 @@ static int spi_st_runtime_suspend(struct device *dev) writel_relaxed(0, spi_st->base + SSC_IEN); pinctrl_pm_select_sleep_state(dev); - spi_st_clk_disable(spi_st); + clk_disable_unprepare(spi_st->clk); return 0; } @@ -446,7 +420,7 @@ static int spi_st_runtime_resume(struct device *dev) struct spi_st *spi_st = spi_master_get_devdata(master); int ret; - ret = spi_st_clk_enable(spi_st); + ret = clk_prepare_enable(spi_st->clk); pinctrl_pm_select_default_state(dev); return ret; diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 51ad42fad567..200ca228d885 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -960,7 +960,7 @@ static int spi_transfer_one_message(struct spi_master *master, struct spi_transfer *xfer; bool keep_cs = false; int ret = 0; - unsigned long ms = 1; + unsigned long long ms = 1; struct spi_statistics *statm = &master->statistics; struct spi_statistics *stats = &msg->spi->statistics; @@ -991,9 +991,13 @@ static int spi_transfer_one_message(struct spi_master *master, if (ret > 0) { ret = 0; - ms = xfer->len * 8 * 1000 / xfer->speed_hz; + ms = 8LL * 1000LL * xfer->len; + do_div(ms, xfer->speed_hz); ms += ms + 100; /* some tolerance */ + if (ms > UINT_MAX) + ms = UINT_MAX; + ms = wait_for_completion_timeout(&master->xfer_completion, msecs_to_jiffies(ms)); } @@ -1159,6 +1163,7 @@ static void __spi_pump_messages(struct spi_master *master, bool in_kthread) if (ret < 0) { dev_err(&master->dev, "Failed to power device: %d\n", ret); + mutex_unlock(&master->io_mutex); return; } } @@ -1174,6 +1179,7 @@ static void __spi_pump_messages(struct spi_master *master, bool in_kthread) if (master->auto_runtime_pm) pm_runtime_put(master->dev.parent); + mutex_unlock(&master->io_mutex); return; } } |
