clk: imx: Rename the SCCG to SSCG (ba7928d9) · Commits · EulixOS / Software / Kernel

drivers/clk/imx/Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -18,7 +18,7 @@ obj-$(CONFIG_MXC_CLK) += \
		clk-pllv2.o \
		clk-pllv3.o \
		clk-pllv4.o \
		clk-sccg-pll.o \
		clk-sscg-pll.o \
		clk-pll14xx.o

		obj-$(CONFIG_MXC_CLK_SCU) += \

drivers/clk/imx/clk-imx8mq.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -342,9 +342,9 @@ static int imx8mq_clocks_probe(struct platform_device *pdev)

		clks[IMX8MQ_SYS1_PLL_OUT] = imx_clk_fixed("sys1_pll_out", 800000000);
		clks[IMX8MQ_SYS2_PLL_OUT] = imx_clk_fixed("sys2_pll_out", 1000000000);
		clks[IMX8MQ_SYS3_PLL_OUT] = imx_clk_sccg_pll("sys3_pll_out", sys3_pll_out_sels, ARRAY_SIZE(sys3_pll_out_sels), 0, 0, 0, base + 0x48, CLK_IS_CRITICAL);
		clks[IMX8MQ_DRAM_PLL_OUT] = imx_clk_sccg_pll("dram_pll_out", dram_pll_out_sels, ARRAY_SIZE(dram_pll_out_sels), 0, 0, 0, base + 0x60, CLK_IS_CRITICAL \| CLK_GET_RATE_NOCACHE);
		clks[IMX8MQ_VIDEO2_PLL_OUT] = imx_clk_sccg_pll("video2_pll_out", video2_pll_out_sels, ARRAY_SIZE(video2_pll_out_sels), 0, 0, 0, base + 0x54, 0);
		clks[IMX8MQ_SYS3_PLL_OUT] = imx_clk_sscg_pll("sys3_pll_out", sys3_pll_out_sels, ARRAY_SIZE(sys3_pll_out_sels), 0, 0, 0, base + 0x48, CLK_IS_CRITICAL);
		clks[IMX8MQ_DRAM_PLL_OUT] = imx_clk_sscg_pll("dram_pll_out", dram_pll_out_sels, ARRAY_SIZE(dram_pll_out_sels), 0, 0, 0, base + 0x60, CLK_IS_CRITICAL \| CLK_GET_RATE_NOCACHE);
		clks[IMX8MQ_VIDEO2_PLL_OUT] = imx_clk_sscg_pll("video2_pll_out", video2_pll_out_sels, ARRAY_SIZE(video2_pll_out_sels), 0, 0, 0, base + 0x54, 0);

		/* SYS PLL1 fixed output */
		clks[IMX8MQ_SYS1_PLL_40M_CG] = imx_clk_gate("sys1_pll_40m_cg", "sys1_pll_out", base + 0x30, 9);

drivers/clk/imx/clk-sccg-pll.c→drivers/clk/imx/clk-sscg-pll.c

+75 −75

Original line number	Diff line number	Diff line
		@@ -67,7 +67,7 @@

		#define PLL_SCCG_LOCK_TIMEOUT 70

		struct clk_sccg_pll_setup {
		struct clk_sscg_pll_setup {
		int divr1, divf1;
		int divr2, divf2;
		int divq;
		@@ -83,22 +83,22 @@ struct clk_sccg_pll_setup {
		int fout_error;
		};

		struct clk_sccg_pll {
		struct clk_sscg_pll {
		struct clk_hw hw;
		const struct clk_ops ops;

		void __iomem *base;

		struct clk_sccg_pll_setup setup;
		struct clk_sscg_pll_setup setup;

		u8 parent;
		u8 bypass1;
		u8 bypass2;
		};

		#define to_clk_sccg_pll(_hw) container_of(_hw, struct clk_sccg_pll, hw)
		#define to_clk_sscg_pll(_hw) container_of(_hw, struct clk_sscg_pll, hw)

		static int clk_sccg_pll_wait_lock(struct clk_sccg_pll *pll)
		static int clk_sscg_pll_wait_lock(struct clk_sscg_pll *pll)
		{
		u32 val;

		@@ -112,15 +112,15 @@ static int clk_sccg_pll_wait_lock(struct clk_sccg_pll *pll)
		return 0;
		}

		static int clk_sccg_pll2_check_match(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup)
		static int clk_sscg_pll2_check_match(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup)
		{
		int new_diff = temp_setup->fout - temp_setup->fout_request;
		int diff = temp_setup->fout_error;

		if (abs(diff) > abs(new_diff)) {
		temp_setup->fout_error = new_diff;
		memcpy(setup, temp_setup, sizeof(struct clk_sccg_pll_setup));
		memcpy(setup, temp_setup, sizeof(struct clk_sscg_pll_setup));

		if (temp_setup->fout_request == temp_setup->fout)
		return 0;
		@@ -128,8 +128,8 @@ static int clk_sccg_pll2_check_match(struct clk_sccg_pll_setup *setup,
		return -1;
		}

		static int clk_sccg_divq_lookup(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup)
		static int clk_sscg_divq_lookup(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup)
		{
		int ret = -EINVAL;

		@@ -144,7 +144,7 @@ static int clk_sccg_divq_lookup(struct clk_sccg_pll_setup *setup,
		temp_setup->fout = temp_setup->vco2;
		do_div(temp_setup->fout, 2 * (temp_setup->divq + 1));

		ret = clk_sccg_pll2_check_match(setup, temp_setup);
		ret = clk_sscg_pll2_check_match(setup, temp_setup);
		if (!ret) {
		temp_setup->bypass = PLL_BYPASS1;
		return ret;
		@@ -155,14 +155,14 @@ static int clk_sccg_divq_lookup(struct clk_sccg_pll_setup *setup,
		return ret;
		}

		static int clk_sccg_divf2_lookup(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup)
		static int clk_sscg_divf2_lookup(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup)
		{
		int ret = -EINVAL;

		for (temp_setup->divf2 = 0; temp_setup->divf2 <= PLL_DIVF2_MAX;
		temp_setup->divf2++) {
		ret = clk_sccg_divq_lookup(setup, temp_setup);
		ret = clk_sscg_divq_lookup(setup, temp_setup);
		if (!ret)
		return ret;
		}
		@@ -170,8 +170,8 @@ static int clk_sccg_divf2_lookup(struct clk_sccg_pll_setup *setup,
		return ret;
		}

		static int clk_sccg_divr2_lookup(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup)
		static int clk_sscg_divr2_lookup(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup)
		{
		int ret = -EINVAL;

		@@ -181,7 +181,7 @@ static int clk_sccg_divr2_lookup(struct clk_sccg_pll_setup *setup,
		do_div(temp_setup->ref_div2, temp_setup->divr2 + 1);
		if (temp_setup->ref_div2 >= PLL_STAGE2_REF_MIN_FREQ &&
		temp_setup->ref_div2 <= PLL_STAGE2_REF_MAX_FREQ) {
		ret = clk_sccg_divf2_lookup(setup, temp_setup);
		ret = clk_sscg_divf2_lookup(setup, temp_setup);
		if (!ret)
		return ret;
		}
		@@ -190,8 +190,8 @@ static int clk_sccg_divr2_lookup(struct clk_sccg_pll_setup *setup,
		return ret;
		}

		static int clk_sccg_pll2_find_setup(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup,
		static int clk_sscg_pll2_find_setup(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup,
		uint64_t ref)
		{

		@@ -202,12 +202,12 @@ static int clk_sccg_pll2_find_setup(struct clk_sccg_pll_setup *setup,

		temp_setup->vco1 = ref;

		ret = clk_sccg_divr2_lookup(setup, temp_setup);
		ret = clk_sscg_divr2_lookup(setup, temp_setup);
		return ret;
		}

		static int clk_sccg_divf1_lookup(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup)
		static int clk_sscg_divf1_lookup(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup)
		{
		int ret = -EINVAL;

		@@ -219,7 +219,7 @@ static int clk_sccg_divf1_lookup(struct clk_sccg_pll_setup *setup,
		vco1 *= 2;
		vco1 *= temp_setup->divf1 + 1;

		ret = clk_sccg_pll2_find_setup(setup, temp_setup, vco1);
		ret = clk_sscg_pll2_find_setup(setup, temp_setup, vco1);
		if (!ret) {
		temp_setup->bypass = PLL_BYPASS_NONE;
		return ret;
		@@ -229,8 +229,8 @@ static int clk_sccg_divf1_lookup(struct clk_sccg_pll_setup *setup,
		return ret;
		}

		static int clk_sccg_divr1_lookup(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup)
		static int clk_sscg_divr1_lookup(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup)
		{
		int ret = -EINVAL;

		@@ -240,7 +240,7 @@ static int clk_sccg_divr1_lookup(struct clk_sccg_pll_setup *setup,
		do_div(temp_setup->ref_div1, temp_setup->divr1 + 1);
		if (temp_setup->ref_div1 >= PLL_STAGE1_REF_MIN_FREQ &&
		temp_setup->ref_div1 <= PLL_STAGE1_REF_MAX_FREQ) {
		ret = clk_sccg_divf1_lookup(setup, temp_setup);
		ret = clk_sscg_divf1_lookup(setup, temp_setup);
		if (!ret)
		return ret;
		}
		@@ -249,8 +249,8 @@ static int clk_sccg_divr1_lookup(struct clk_sccg_pll_setup *setup,
		return ret;
		}

		static int clk_sccg_pll1_find_setup(struct clk_sccg_pll_setup *setup,
		struct clk_sccg_pll_setup *temp_setup,
		static int clk_sscg_pll1_find_setup(struct clk_sscg_pll_setup *setup,
		struct clk_sscg_pll_setup *temp_setup,
		uint64_t ref)
		{

		@@ -261,20 +261,20 @@ static int clk_sccg_pll1_find_setup(struct clk_sccg_pll_setup *setup,

		temp_setup->ref = ref;

		ret = clk_sccg_divr1_lookup(setup, temp_setup);
		ret = clk_sscg_divr1_lookup(setup, temp_setup);

		return ret;
		}

		static int clk_sccg_pll_find_setup(struct clk_sccg_pll_setup *setup,
		static int clk_sscg_pll_find_setup(struct clk_sscg_pll_setup *setup,
		uint64_t prate,
		uint64_t rate, int try_bypass)
		{
		struct clk_sccg_pll_setup temp_setup;
		struct clk_sscg_pll_setup temp_setup;
		int ret = -EINVAL;

		memset(&temp_setup, 0, sizeof(struct clk_sccg_pll_setup));
		memset(setup, 0, sizeof(struct clk_sccg_pll_setup));
		memset(&temp_setup, 0, sizeof(struct clk_sscg_pll_setup));
		memset(setup, 0, sizeof(struct clk_sscg_pll_setup));

		temp_setup.fout_error = PLL_OUT_MAX_FREQ;
		temp_setup.fout_request = rate;
		@@ -290,11 +290,11 @@ static int clk_sccg_pll_find_setup(struct clk_sccg_pll_setup *setup,
		break;

		case PLL_BYPASS1:
		ret = clk_sccg_pll2_find_setup(setup, &temp_setup, prate);
		ret = clk_sscg_pll2_find_setup(setup, &temp_setup, prate);
		break;

		case PLL_BYPASS_NONE:
		ret = clk_sccg_pll1_find_setup(setup, &temp_setup, prate);
		ret = clk_sscg_pll1_find_setup(setup, &temp_setup, prate);
		break;
		}

		@@ -302,30 +302,30 @@ static int clk_sccg_pll_find_setup(struct clk_sccg_pll_setup *setup,
		}


		static int clk_sccg_pll_is_prepared(struct clk_hw *hw)
		static int clk_sscg_pll_is_prepared(struct clk_hw *hw)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);

		u32 val = readl_relaxed(pll->base + PLL_CFG0);

		return (val & PLL_PD_MASK) ? 0 : 1;
		}

		static int clk_sccg_pll_prepare(struct clk_hw *hw)
		static int clk_sscg_pll_prepare(struct clk_hw *hw)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		u32 val;

		val = readl_relaxed(pll->base + PLL_CFG0);
		val &= ~PLL_PD_MASK;
		writel_relaxed(val, pll->base + PLL_CFG0);

		return clk_sccg_pll_wait_lock(pll);
		return clk_sscg_pll_wait_lock(pll);
		}

		static void clk_sccg_pll_unprepare(struct clk_hw *hw)
		static void clk_sscg_pll_unprepare(struct clk_hw *hw)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		u32 val;

		val = readl_relaxed(pll->base + PLL_CFG0);
		@@ -333,10 +333,10 @@ static void clk_sccg_pll_unprepare(struct clk_hw *hw)
		writel_relaxed(val, pll->base + PLL_CFG0);
		}

		static unsigned long clk_sccg_pll_recalc_rate(struct clk_hw *hw,
		static unsigned long clk_sscg_pll_recalc_rate(struct clk_hw *hw,
		unsigned long parent_rate)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		u32 val, divr1, divf1, divr2, divf2, divq;
		u64 temp64;

		@@ -364,11 +364,11 @@ static unsigned long clk_sccg_pll_recalc_rate(struct clk_hw *hw,
		return temp64;
		}

		static int clk_sccg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
		static int clk_sscg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
		unsigned long parent_rate)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sccg_pll_setup *setup = &pll->setup;
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		struct clk_sscg_pll_setup *setup = &pll->setup;
		u32 val;

		/* set bypass here too since the parent might be the same */
		@@ -387,12 +387,12 @@ static int clk_sccg_pll_set_rate(struct clk_hw *hw, unsigned long rate,
		val \|= FIELD_PREP(PLL_DIVQ_MASK, setup->divq);
		writel_relaxed(val, pll->base + PLL_CFG2);

		return clk_sccg_pll_wait_lock(pll);
		return clk_sscg_pll_wait_lock(pll);
		}

		static u8 clk_sccg_pll_get_parent(struct clk_hw *hw)
		static u8 clk_sscg_pll_get_parent(struct clk_hw *hw)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		u32 val;
		u8 ret = pll->parent;

		@@ -404,9 +404,9 @@ static u8 clk_sccg_pll_get_parent(struct clk_hw *hw)
		return ret;
		}

		static int clk_sccg_pll_set_parent(struct clk_hw *hw, u8 index)
		static int clk_sscg_pll_set_parent(struct clk_hw *hw, u8 index)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		u32 val;

		val = readl(pll->base + PLL_CFG0);
		@@ -414,18 +414,18 @@ static int clk_sccg_pll_set_parent(struct clk_hw *hw, u8 index)
		val \|= FIELD_PREP(SSCG_PLL_BYPASS_MASK, pll->setup.bypass);
		writel(val, pll->base + PLL_CFG0);

		return clk_sccg_pll_wait_lock(pll);
		return clk_sscg_pll_wait_lock(pll);
		}

		static int __clk_sccg_pll_determine_rate(struct clk_hw *hw,
		static int __clk_sscg_pll_determine_rate(struct clk_hw *hw,
		struct clk_rate_request *req,
		uint64_t min,
		uint64_t max,
		uint64_t rate,
		int bypass)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sccg_pll_setup *setup = &pll->setup;
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		struct clk_sscg_pll_setup *setup = &pll->setup;
		struct clk_hw *parent_hw = NULL;
		int bypass_parent_index;
		int ret = -EINVAL;
		@@ -448,7 +448,7 @@ static int __clk_sccg_pll_determine_rate(struct clk_hw *hw,
		parent_hw = clk_hw_get_parent_by_index(hw, bypass_parent_index);
		ret = __clk_determine_rate(parent_hw, req);
		if (!ret) {
		ret = clk_sccg_pll_find_setup(setup, req->rate,
		ret = clk_sscg_pll_find_setup(setup, req->rate,
		rate, bypass);
		}

		@@ -459,11 +459,11 @@ static int __clk_sccg_pll_determine_rate(struct clk_hw *hw,
		return ret;
		}

		static int clk_sccg_pll_determine_rate(struct clk_hw *hw,
		static int clk_sscg_pll_determine_rate(struct clk_hw *hw,
		struct clk_rate_request *req)
		{
		struct clk_sccg_pll *pll = to_clk_sccg_pll(hw);
		struct clk_sccg_pll_setup *setup = &pll->setup;
		struct clk_sscg_pll *pll = to_clk_sscg_pll(hw);
		struct clk_sscg_pll_setup *setup = &pll->setup;
		uint64_t rate = req->rate;
		uint64_t min = req->min_rate;
		uint64_t max = req->max_rate;
		@@ -472,18 +472,18 @@ static int clk_sccg_pll_determine_rate(struct clk_hw *hw,
		if (rate < PLL_OUT_MIN_FREQ \|\| rate > PLL_OUT_MAX_FREQ)
		return ret;

		ret = __clk_sccg_pll_determine_rate(hw, req, req->rate, req->rate,
		ret = __clk_sscg_pll_determine_rate(hw, req, req->rate, req->rate,
		rate, PLL_BYPASS2);
		if (!ret)
		return ret;

		ret = __clk_sccg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
		ret = __clk_sscg_pll_determine_rate(hw, req, PLL_STAGE1_REF_MIN_FREQ,
		PLL_STAGE1_REF_MAX_FREQ, rate,
		PLL_BYPASS1);
		if (!ret)
		return ret;

		ret = __clk_sccg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
		ret = __clk_sscg_pll_determine_rate(hw, req, PLL_REF_MIN_FREQ,
		PLL_REF_MAX_FREQ, rate,
		PLL_BYPASS_NONE);
		if (!ret)
		@@ -495,25 +495,25 @@ static int clk_sccg_pll_determine_rate(struct clk_hw *hw,
		return ret;
		}

		static const struct clk_ops clk_sccg_pll_ops = {
		.prepare = clk_sccg_pll_prepare,
		.unprepare = clk_sccg_pll_unprepare,
		.is_prepared = clk_sccg_pll_is_prepared,
		.recalc_rate = clk_sccg_pll_recalc_rate,
		.set_rate = clk_sccg_pll_set_rate,
		.set_parent = clk_sccg_pll_set_parent,
		.get_parent = clk_sccg_pll_get_parent,
		.determine_rate = clk_sccg_pll_determine_rate,
		static const struct clk_ops clk_sscg_pll_ops = {
		.prepare = clk_sscg_pll_prepare,
		.unprepare = clk_sscg_pll_unprepare,
		.is_prepared = clk_sscg_pll_is_prepared,
		.recalc_rate = clk_sscg_pll_recalc_rate,
		.set_rate = clk_sscg_pll_set_rate,
		.set_parent = clk_sscg_pll_set_parent,
		.get_parent = clk_sscg_pll_get_parent,
		.determine_rate = clk_sscg_pll_determine_rate,
		};

		struct clk imx_clk_sccg_pll(const char name,
		struct clk imx_clk_sscg_pll(const char name,
		const char * const *parent_names,
		u8 num_parents,
		u8 parent, u8 bypass1, u8 bypass2,
		void __iomem *base,
		unsigned long flags)
		{
		struct clk_sccg_pll *pll;
		struct clk_sscg_pll *pll;
		struct clk_init_data init;
		struct clk_hw *hw;
		int ret;
		@@ -528,7 +528,7 @@ struct clk imx_clk_sccg_pll(const char name,

		pll->base = base;
		init.name = name;
		init.ops = &clk_sccg_pll_ops;
		init.ops = &clk_sscg_pll_ops;

		init.flags = flags;
		init.parent_names = parent_names;

drivers/clk/imx/clk.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -24,7 +24,7 @@ enum imx_pllv1_type {
		IMX_PLLV1_IMX35,
		};

		enum imx_sccg_pll_type {
		enum imx_sscg_pll_type {
		SCCG_PLL1,
		SCCG_PLL2,
		};
		@@ -110,7 +110,7 @@ struct clk imx_clk_pllv2(const char name, const char *parent,
		struct clk imx_clk_frac_pll(const char name, const char *parent_name,
		void __iomem *base);

		struct clk imx_clk_sccg_pll(const char name,
		struct clk imx_clk_sscg_pll(const char name,
		const char * const *parent_names,
		u8 num_parents,
		u8 parent, u8 bypass1, u8 bypass2,