From 2eae613b95a786714bd1b5825ea3abc78d229d3f Mon Sep 17 00:00:00 2001 From: Arun Kumar K Date: Tue, 23 Oct 2012 22:51:33 +0900 Subject: ARM: EXYNOS: Add MFC device tree support This patch adds device tree entry for MFC v6 in the Exynos5 SoC. Makes the required changes in the clock files and adds MFC to the DT device list. Signed-off-by: Naveen Krishna Chatradhi Signed-off-by: Arun Kumar K [kgene.kim@samsung.com: fixed section mismatches Seung-Woo Kim reported] Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/devs.c | 1 + arch/arm/plat-samsung/include/plat/mfc.h | 11 +++++++++++ arch/arm/plat-samsung/s5p-dev-mfc.c | 34 ++++++++++++++++++++++++++++++++ 3 files changed, 46 insertions(+) (limited to 'arch/arm/plat-samsung') diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 03f654d55eff..52dfa8f914c7 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -933,6 +933,7 @@ struct platform_device s5p_device_mfc_r = { .coherent_dma_mask = DMA_BIT_MASK(32), }, }; + #endif /* CONFIG_S5P_DEV_MFC */ /* MIPI CSIS */ diff --git a/arch/arm/plat-samsung/include/plat/mfc.h b/arch/arm/plat-samsung/include/plat/mfc.h index ac13227272f0..e6d7c42d68b6 100644 --- a/arch/arm/plat-samsung/include/plat/mfc.h +++ b/arch/arm/plat-samsung/include/plat/mfc.h @@ -10,6 +10,14 @@ #ifndef __PLAT_SAMSUNG_MFC_H #define __PLAT_SAMSUNG_MFC_H __FILE__ +struct s5p_mfc_dt_meminfo { + unsigned long loff; + unsigned long lsize; + unsigned long roff; + unsigned long rsize; + char *compatible; +}; + /** * s5p_mfc_reserve_mem - function to early reserve memory for MFC driver * @rbase: base address for MFC 'right' memory interface @@ -24,4 +32,7 @@ void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize, phys_addr_t lbase, unsigned int lsize); +int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname, + int depth, void *data); + #endif /* __PLAT_SAMSUNG_MFC_H */ diff --git a/arch/arm/plat-samsung/s5p-dev-mfc.c b/arch/arm/plat-samsung/s5p-dev-mfc.c index ad6089465e2a..5ec104b5408b 100644 --- a/arch/arm/plat-samsung/s5p-dev-mfc.c +++ b/arch/arm/plat-samsung/s5p-dev-mfc.c @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include #include @@ -69,3 +71,35 @@ static int __init s5p_mfc_memory_init(void) return 0; } device_initcall(s5p_mfc_memory_init); + +#ifdef CONFIG_OF +int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname, + int depth, void *data) +{ + __be32 *prop; + unsigned long len; + struct s5p_mfc_dt_meminfo *mfc_mem = data; + + if (!data) + return 0; + + if (!of_flat_dt_is_compatible(node, mfc_mem->compatible)) + return 0; + + prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len); + if (!prop || (len != 2 * sizeof(unsigned long))) + return 0; + + mfc_mem->loff = be32_to_cpu(prop[0]); + mfc_mem->lsize = be32_to_cpu(prop[1]); + + prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len); + if (!prop || (len != 2 * sizeof(unsigned long))) + return 0; + + mfc_mem->roff = be32_to_cpu(prop[0]); + mfc_mem->rsize = be32_to_cpu(prop[1]); + + return 1; +} +#endif -- cgit v1.2.1 From 0a9d5ac307aefbb2c772537d3fe7f75046d563ac Mon Sep 17 00:00:00 2001 From: Rahul Sharma Date: Mon, 29 Oct 2012 21:51:55 +0900 Subject: ARM: EXYNOS: removing exynos-drm device registration from non-dt platforms As exynos-drm is a software device, its registration is moved to the exynos drm driver. This will provide generic solution for device registration for dt and non-dt platforms. Corresponding patches are posted to dri-devel list. Signed-off-by: Rahul Sharma Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/include/plat/devs.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/arm/plat-samsung') diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h index 5da4b4f38f40..133e3e4170fb 100644 --- a/arch/arm/plat-samsung/include/plat/devs.h +++ b/arch/arm/plat-samsung/include/plat/devs.h @@ -133,8 +133,6 @@ extern struct platform_device exynos4_device_pcm1; extern struct platform_device exynos4_device_pcm2; extern struct platform_device exynos4_device_spdif; -extern struct platform_device exynos_device_drm; - extern struct platform_device samsung_asoc_dma; extern struct platform_device samsung_asoc_idma; extern struct platform_device samsung_device_keypad; -- cgit v1.2.1 From 62ef4a5d7a33852b54798dd738f675ac746f0d4c Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Thu, 8 Nov 2012 08:45:00 +0900 Subject: ARM: EXYNOS: Make s3c_device_i2c0 always use id 0 This patch removes compatibility definitions added long time ago when clock ids were used instead of devnames that were needed for platforms with only one i2c controller with id -1 (some s3c24xx's). Because currently devname field is used for matching device instances to clocks and if no devname is provided (as in clock-s3c2412.c and common-s3c2443.c for i2c clock, both in arch/arm/mach-s3c24xx) the clock is being matched only by name, so s3c_device_i2c0 can always have id 0. This patch solves the issue with i2c0 broken on boards where its the only i2c controller used, tested on Origen. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Reviewed-by: Sylwester Nawrocki Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/devs.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'arch/arm/plat-samsung') diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 03f654d55eff..a17d7b3e3725 100644 --- a/arch/arm/plat-samsung/devs.c +++ b/arch/arm/plat-samsung/devs.c @@ -486,11 +486,7 @@ static struct resource s3c_i2c0_resource[] = { struct platform_device s3c_device_i2c0 = { .name = "s3c2410-i2c", -#ifdef CONFIG_S3C_DEV_I2C1 .id = 0, -#else - .id = -1, -#endif .num_resources = ARRAY_SIZE(s3c_i2c0_resource), .resource = s3c_i2c0_resource, }; -- cgit v1.2.1 From 2ee8e6f0e375c68d420c47ddab70485d8e587d95 Mon Sep 17 00:00:00 2001 From: Eunki Kim Date: Tue, 20 Nov 2012 20:50:54 +0900 Subject: ARM: SAMSUNG: use devm_ functions for ADC driver This patch uses devm_* functions for probe function in ADC driver. It reduces code size and simplifies the code. Signed-off-by: Eunki Kim Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/adc.c | 48 ++++++++++++--------------------------------- 1 file changed, 13 insertions(+), 35 deletions(-) (limited to 'arch/arm/plat-samsung') diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c index b1e05ccff3ac..37542c2689a2 100644 --- a/arch/arm/plat-samsung/adc.c +++ b/arch/arm/plat-samsung/adc.c @@ -344,7 +344,7 @@ static int s3c_adc_probe(struct platform_device *pdev) int ret; unsigned tmp; - adc = kzalloc(sizeof(struct adc_device), GFP_KERNEL); + adc = devm_kzalloc(dev, sizeof(struct adc_device), GFP_KERNEL); if (adc == NULL) { dev_err(dev, "failed to allocate adc_device\n"); return -ENOMEM; @@ -355,50 +355,46 @@ static int s3c_adc_probe(struct platform_device *pdev) adc->pdev = pdev; adc->prescale = S3C2410_ADCCON_PRSCVL(49); - adc->vdd = regulator_get(dev, "vdd"); + adc->vdd = devm_regulator_get(dev, "vdd"); if (IS_ERR(adc->vdd)) { dev_err(dev, "operating without regulator \"vdd\" .\n"); - ret = PTR_ERR(adc->vdd); - goto err_alloc; + return PTR_ERR(adc->vdd); } adc->irq = platform_get_irq(pdev, 1); if (adc->irq <= 0) { dev_err(dev, "failed to get adc irq\n"); - ret = -ENOENT; - goto err_reg; + return -ENOENT; } - ret = request_irq(adc->irq, s3c_adc_irq, 0, dev_name(dev), adc); + ret = devm_request_irq(dev, adc->irq, s3c_adc_irq, 0, dev_name(dev), + adc); if (ret < 0) { dev_err(dev, "failed to attach adc irq\n"); - goto err_reg; + return ret; } - adc->clk = clk_get(dev, "adc"); + adc->clk = devm_clk_get(dev, "adc"); if (IS_ERR(adc->clk)) { dev_err(dev, "failed to get adc clock\n"); - ret = PTR_ERR(adc->clk); - goto err_irq; + return PTR_ERR(adc->clk); } regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!regs) { dev_err(dev, "failed to find registers\n"); - ret = -ENXIO; - goto err_clk; + return -ENXIO; } - adc->regs = ioremap(regs->start, resource_size(regs)); + adc->regs = devm_request_and_ioremap(dev, regs); if (!adc->regs) { dev_err(dev, "failed to map registers\n"); - ret = -ENXIO; - goto err_clk; + return -ENXIO; } ret = regulator_enable(adc->vdd); if (ret) - goto err_ioremap; + return ret; clk_enable(adc->clk); @@ -418,32 +414,14 @@ static int s3c_adc_probe(struct platform_device *pdev) adc_dev = adc; return 0; - - err_ioremap: - iounmap(adc->regs); - err_clk: - clk_put(adc->clk); - - err_irq: - free_irq(adc->irq, adc); - err_reg: - regulator_put(adc->vdd); - err_alloc: - kfree(adc); - return ret; } static int __devexit s3c_adc_remove(struct platform_device *pdev) { struct adc_device *adc = platform_get_drvdata(pdev); - iounmap(adc->regs); - free_irq(adc->irq, adc); clk_disable(adc->clk); regulator_disable(adc->vdd); - regulator_put(adc->vdd); - clk_put(adc->clk); - kfree(adc); return 0; } -- cgit v1.2.1