From f264e2357231066c2e626c737b88416f556dcd74 Mon Sep 17 00:00:00 2001 From: Patrice Chotard Date: Wed, 15 Nov 2017 13:14:48 +0100 Subject: [PATCH] clk: stm32f7: rename clk_stm32f7.c to clk_stm32f.c Now that clk_stm32f7.c manages clocks for both STM32F4 and F7 SoCs rename it to a more generic clk_stm32f.c Fix also some checkpatch errors/warnings. Signed-off-by: Patrice Chotard Reviewed-by: Vikas Manocha --- drivers/clk/Kconfig | 8 ++++++++ drivers/clk/Makefile | 2 +- drivers/clk/{clk_stm32f7.c => clk_stm32f.c} | 12 ++++-------- 3 files changed, 13 insertions(+), 9 deletions(-) rename drivers/clk/{clk_stm32f7.c => clk_stm32f.c} (98%) diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index baa60a5..f6644ee 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -46,6 +46,14 @@ config CLK_BOSTON help Enable this to support the clocks +config CLK_STM32F + bool "Enable clock driver support for STM32F family" + depends on CLK && (STM32F7 || STM32F4) + default y + help + This clock driver adds support for RCC clock management + for STM32F4 and STM32F7 SoCs. + config CLK_ZYNQ bool "Enable clock driver support for Zynq" depends on CLK && ARCH_ZYNQ diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 83fe88c..bcc8f82 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -21,5 +21,5 @@ obj-$(CONFIG_CLK_AT91) += at91/ obj-$(CONFIG_CLK_BCM6345) += clk_bcm6345.o obj-$(CONFIG_CLK_BOSTON) += clk_boston.o obj-$(CONFIG_ARCH_ASPEED) += aspeed/ -obj-$(CONFIG_STM32F7) += clk_stm32f7.o +obj-$(CONFIG_CLK_STM32F) += clk_stm32f.o obj-$(CONFIG_STM32H7) += clk_stm32h7.o diff --git a/drivers/clk/clk_stm32f7.c b/drivers/clk/clk_stm32f.c similarity index 98% rename from drivers/clk/clk_stm32f7.c rename to drivers/clk/clk_stm32f.c index 4c69740..10f4485 100644 --- a/drivers/clk/clk_stm32f7.c +++ b/drivers/clk/clk_stm32f.c @@ -197,6 +197,7 @@ static unsigned long stm32_clk_get_rate(struct clk *clk) struct stm32_rcc_regs *regs = priv->base; u32 sysclk = 0; u32 shift = 0; + u16 pllm, plln, pllp; /* Prescaler table lookups for clock computation */ u8 ahb_psc_table[16] = { 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9 @@ -207,7 +208,6 @@ static unsigned long stm32_clk_get_rate(struct clk *clk) if ((readl(®s->cfgr) & RCC_CFGR_SWS_MASK) == RCC_CFGR_SWS_PLL) { - u16 pllm, plln, pllp; pllm = (readl(®s->pllcfgr) & RCC_PLLCFGR_PLLM_MASK); plln = ((readl(®s->pllcfgr) & RCC_PLLCFGR_PLLN_MASK) >> RCC_PLLCFGR_PLLN_SHIFT); @@ -228,25 +228,21 @@ static unsigned long stm32_clk_get_rate(struct clk *clk) (readl(®s->cfgr) & RCC_CFGR_AHB_PSC_MASK) >> RCC_CFGR_HPRE_SHIFT)]; return sysclk >>= shift; - break; /* APB1 CLOCK */ case STM32F7_APB1_CLOCK(TIM2) ... STM32F7_APB1_CLOCK(UART8): shift = apb_psc_table[( (readl(®s->cfgr) & RCC_CFGR_APB1_PSC_MASK) >> RCC_CFGR_PPRE1_SHIFT)]; return sysclk >>= shift; - break; /* APB2 CLOCK */ case STM32F7_APB2_CLOCK(TIM1) ... STM32F7_APB2_CLOCK(LTDC): shift = apb_psc_table[( (readl(®s->cfgr) & RCC_CFGR_APB2_PSC_MASK) >> RCC_CFGR_PPRE2_SHIFT)]; return sysclk >>= shift; - break; default: pr_err("clock index %ld out of range\n", clk->id); return -EINVAL; - break; } } @@ -288,7 +284,7 @@ static int stm32_clk_probe(struct udevice *dev) struct ofnode_phandle_args args; int err; - debug("%s: stm32_clk_probe\n", __func__); + debug("%s\n", __func__); struct stm32_clk *priv = dev_get_priv(dev); fdt_addr_t addr; @@ -346,8 +342,8 @@ static const struct udevice_id stm32_clk_ids[] = { {} }; -U_BOOT_DRIVER(stm32f7_clk) = { - .name = "stm32f7_clk", +U_BOOT_DRIVER(stm32fx_clk) = { + .name = "stm32fx_clk", .id = UCLASS_CLK, .of_match = stm32_clk_ids, .ops = &stm32_clk_ops, -- 2.7.4