clk: Use generic CCF ops where possible

This converts most CCF drivers to use generic ops. imx6q is the only
outlier, where we retain the existing functionality by moving the check to
request().

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220320203446.740178-2-seanga2@gmail.com
[ fixed missing include for at91 ]
Signed-off-by: Sean Anderson <seanga2@gmail.com>

8 files changed, 22 insertions, 591 deletions

diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index 1fa42d7..2708925 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -7,6 +7,7 @@
 #include <common.h>
 #include <asm/io.h>
 #include <clk-uclass.h>
+#include <linux/clk-provider.h>
 #include "pmc.h"
 
 static int at91_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args)
@@ -21,60 +22,12 @@ static int at91_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args)
 	return 0;
 }
 
-static ulong at91_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_get_rate(c);
-}
-
-static ulong at91_clk_set_rate(struct clk *clk, ulong rate)
-{
-	struct clk *c;
-	int ret;
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_set_rate(c, rate);
-}
-
-static int at91_clk_enable(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_enable(c);
-}
-
-static int at91_clk_disable(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_disable(c);
-}
-
 const struct clk_ops at91_clk_ops = {
 	.of_xlate	= at91_clk_of_xlate,
-	.set_rate	= at91_clk_set_rate,
-	.get_rate	= at91_clk_get_rate,
-	.enable		= at91_clk_enable,
-	.disable	= at91_clk_disable,
+	.set_rate	= ccf_clk_set_rate,
+	.get_rate	= ccf_clk_get_rate,
+	.enable		= ccf_clk_enable,
+	.disable	= ccf_clk_disable,
 };
 
 /**
diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c
index 5343036..67825af 100644
--- a/drivers/clk/imx/clk-imx6q.c
+++ b/drivers/clk/imx/clk-imx6q.c
@@ -14,79 +14,22 @@
 
 #include "clk.h"
 
-static int imx6q_check_id(ulong id)
+static int imx6q_clk_request(struct clk *clk)
 {
-	if (id < IMX6QDL_CLK_DUMMY || id >= IMX6QDL_CLK_END) {
-		printf("%s: Invalid clk ID #%lu\n", __func__, id);
+	if (clk->id < IMX6QDL_CLK_DUMMY || clk->id >= IMX6QDL_CLK_END) {
+		printf("%s: Invalid clk ID #%lu\n", __func__, clk->id);
 		return -EINVAL;
 	}
 
 	return 0;
 }
 
-static ulong imx6q_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu)\n", __func__, clk->id);
-
-	ret = imx6q_check_id(clk->id);
-	if (ret)
-		return ret;
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_get_rate(c);
-}
-
-static ulong imx6q_clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
-
-	return rate;
-}
-
-static int __imx6q_clk_enable(struct clk *clk, bool enable)
-{
-	struct clk *c;
-	int ret = 0;
-
-	debug("%s(#%lu) en: %d\n", __func__, clk->id, enable);
-
-	ret = imx6q_check_id(clk->id);
-	if (ret)
-		return ret;
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	if (enable)
-		ret = clk_enable(c);
-	else
-		ret = clk_disable(c);
-
-	return ret;
-}
-
-static int imx6q_clk_disable(struct clk *clk)
-{
-	return __imx6q_clk_enable(clk, 0);
-}
-
-static int imx6q_clk_enable(struct clk *clk)
-{
-	return __imx6q_clk_enable(clk, 1);
-}
-
 static struct clk_ops imx6q_clk_ops = {
-	.set_rate = imx6q_clk_set_rate,
-	.get_rate = imx6q_clk_get_rate,
-	.enable = imx6q_clk_enable,
-	.disable = imx6q_clk_disable,
+	.request = imx6q_clk_request,
+	.set_rate = ccf_clk_set_rate,
+	.get_rate = ccf_clk_get_rate,
+	.enable = ccf_clk_enable,
+	.disable = ccf_clk_disable,
 };
 
 static const char *const usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", };
diff --git a/drivers/clk/imx/clk-imx8mm.c b/drivers/clk/imx/clk-imx8mm.c
index 3aa8c64..443bbda 100644
--- a/drivers/clk/imx/clk-imx8mm.c
+++ b/drivers/clk/imx/clk-imx8mm.c
@@ -140,92 +140,6 @@ static const char *imx8mm_ecspi2_sels[] = {"clock-osc-24m", "sys_pll2_200m", "sy
 static const char *imx8mm_ecspi3_sels[] = {"clock-osc-24m", "sys_pll2_200m", "sys_pll1_40m", "sys_pll1_160m",
 					   "sys_pll1_800m", "sys_pll3_out", "sys_pll2_250m", "audio_pll2_out", };
 
-static ulong imx8mm_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu)\n", __func__, clk->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_get_rate(c);
-}
-
-static ulong imx8mm_clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_set_rate(c, rate);
-}
-
-static int __imx8mm_clk_enable(struct clk *clk, bool enable)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu) en: %d\n", __func__, clk->id, enable);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	if (enable)
-		ret = clk_enable(c);
-	else
-		ret = clk_disable(c);
-
-	return ret;
-}
-
-static int imx8mm_clk_disable(struct clk *clk)
-{
-	return __imx8mm_clk_enable(clk, 0);
-}
-
-static int imx8mm_clk_enable(struct clk *clk)
-{
-	return __imx8mm_clk_enable(clk, 1);
-}
-
-static int imx8mm_clk_set_parent(struct clk *clk, struct clk *parent)
-{
-	struct clk *c, *cp;
-	int ret;
-
-	debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	ret = clk_get_by_id(parent->id, &cp);
-	if (ret)
-		return ret;
-
-	ret = clk_set_parent(c, cp);
-	c->dev->parent = cp->dev;
-
-	return ret;
-}
-
-static struct clk_ops imx8mm_clk_ops = {
-	.set_rate = imx8mm_clk_set_rate,
-	.get_rate = imx8mm_clk_get_rate,
-	.enable = imx8mm_clk_enable,
-	.disable = imx8mm_clk_disable,
-	.set_parent = imx8mm_clk_set_parent,
-};
-
 static int imx8mm_clk_probe(struct udevice *dev)
 {
 	void __iomem *base;
@@ -470,7 +384,7 @@ U_BOOT_DRIVER(imx8mm_clk) = {
 	.name = "clk_imx8mm",
 	.id = UCLASS_CLK,
 	.of_match = imx8mm_clk_ids,
-	.ops = &imx8mm_clk_ops,
+	.ops = &ccf_clk_ops,
 	.probe = imx8mm_clk_probe,
 	.flags = DM_FLAG_PRE_RELOC,
 };
diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c
index e398d7d..bb62138 100644
--- a/drivers/clk/imx/clk-imx8mn.c
+++ b/drivers/clk/imx/clk-imx8mn.c
@@ -148,92 +148,6 @@ static const char * const imx8mn_usb_phy_sels[] = {"clock-osc-24m", "sys_pll1_10
 						"sys_pll2_100m", "sys_pll2_200m", "clk_ext2",
 						"clk_ext3", "audio_pll2_out", };
 
-static ulong imx8mn_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu)\n", __func__, clk->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_get_rate(c);
-}
-
-static ulong imx8mn_clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_set_rate(c, rate);
-}
-
-static int __imx8mn_clk_enable(struct clk *clk, bool enable)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu) en: %d\n", __func__, clk->id, enable);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	if (enable)
-		ret = clk_enable(c);
-	else
-		ret = clk_disable(c);
-
-	return ret;
-}
-
-static int imx8mn_clk_disable(struct clk *clk)
-{
-	return __imx8mn_clk_enable(clk, 0);
-}
-
-static int imx8mn_clk_enable(struct clk *clk)
-{
-	return __imx8mn_clk_enable(clk, 1);
-}
-
-static int imx8mn_clk_set_parent(struct clk *clk, struct clk *parent)
-{
-	struct clk *c, *cp;
-	int ret;
-
-	debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	ret = clk_get_by_id(parent->id, &cp);
-	if (ret)
-		return ret;
-
-	ret = clk_set_parent(c, cp);
-	c->dev->parent = cp->dev;
-
-	return ret;
-}
-
-static struct clk_ops imx8mn_clk_ops = {
-	.set_rate = imx8mn_clk_set_rate,
-	.get_rate = imx8mn_clk_get_rate,
-	.enable = imx8mn_clk_enable,
-	.disable = imx8mn_clk_disable,
-	.set_parent = imx8mn_clk_set_parent,
-};
-
 static int imx8mn_clk_probe(struct udevice *dev)
 {
 	void __iomem *base;
@@ -481,7 +395,7 @@ U_BOOT_DRIVER(imx8mn_clk) = {
 	.name = "clk_imx8mn",
 	.id = UCLASS_CLK,
 	.of_match = imx8mn_clk_ids,
-	.ops = &imx8mn_clk_ops,
+	.ops = &ccf_clk_ops,
 	.probe = imx8mn_clk_probe,
 	.flags = DM_FLAG_PRE_RELOC,
 };
diff --git a/drivers/clk/imx/clk-imx8mp.c b/drivers/clk/imx/clk-imx8mp.c
index c77500b..ad84ce3 100644
--- a/drivers/clk/imx/clk-imx8mp.c
+++ b/drivers/clk/imx/clk-imx8mp.c
@@ -186,94 +186,6 @@ static const char *imx8mp_enet_phy_ref_sels[] = {"clock-osc-24m", "sys_pll2_50m"
 
 static const char *imx8mp_dram_core_sels[] = {"dram_pll_out", "dram_alt_root", };
 
-
-static ulong imx8mp_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu)\n", __func__, clk->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_get_rate(c);
-}
-
-static ulong imx8mp_clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_set_rate(c, rate);
-}
-
-static int __imx8mp_clk_enable(struct clk *clk, bool enable)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu) en: %d\n", __func__, clk->id, enable);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	if (enable)
-		ret = clk_enable(c);
-	else
-		ret = clk_disable(c);
-
-	return ret;
-}
-
-static int imx8mp_clk_disable(struct clk *clk)
-{
-	return __imx8mp_clk_enable(clk, 0);
-}
-
-static int imx8mp_clk_enable(struct clk *clk)
-{
-	return __imx8mp_clk_enable(clk, 1);
-}
-
-static int imx8mp_clk_set_parent(struct clk *clk, struct clk *parent)
-{
-	struct clk *c, *cp;
-	int ret;
-
-	debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	ret = clk_get_by_id(parent->id, &cp);
-	if (ret)
-		return ret;
-
-	ret = clk_set_parent(c, cp);
-
-	c->dev->parent = cp->dev;
-
-	return ret;
-}
-
-static struct clk_ops imx8mp_clk_ops = {
-	.set_rate = imx8mp_clk_set_rate,
-	.get_rate = imx8mp_clk_get_rate,
-	.enable = imx8mp_clk_enable,
-	.disable = imx8mp_clk_disable,
-	.set_parent = imx8mp_clk_set_parent,
-};
-
 static int imx8mp_clk_probe(struct udevice *dev)
 {
 	void __iomem *base;
@@ -409,7 +321,7 @@ U_BOOT_DRIVER(imx8mp_clk) = {
 	.name = "clk_imx8mp",
 	.id = UCLASS_CLK,
 	.of_match = imx8mp_clk_ids,
-	.ops = &imx8mp_clk_ops,
+	.ops = &ccf_clk_ops,
 	.probe = imx8mp_clk_probe,
 	.flags = DM_FLAG_PRE_RELOC,
 };
diff --git a/drivers/clk/imx/clk-imxrt1020.c b/drivers/clk/imx/clk-imxrt1020.c
index 840f783..3f8b4df 100644
--- a/drivers/clk/imx/clk-imxrt1020.c
+++ b/drivers/clk/imx/clk-imxrt1020.c
@@ -14,68 +14,11 @@
 
 #include "clk.h"
 
-static ulong imxrt1020_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu)\n", __func__, clk->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_get_rate(c);
-}
-
-static ulong imxrt1020_clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_set_rate(c, rate);
-}
-
-static int __imxrt1020_clk_enable(struct clk *clk, bool enable)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu) en: %d\n", __func__, clk->id, enable);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	if (enable)
-		ret = clk_enable(c);
-	else
-		ret = clk_disable(c);
-
-	return ret;
-}
-
-static int imxrt1020_clk_disable(struct clk *clk)
-{
-	return __imxrt1020_clk_enable(clk, 0);
-}
-
-static int imxrt1020_clk_enable(struct clk *clk)
-{
-	return __imxrt1020_clk_enable(clk, 1);
-}
-
 static struct clk_ops imxrt1020_clk_ops = {
-	.set_rate = imxrt1020_clk_set_rate,
-	.get_rate = imxrt1020_clk_get_rate,
-	.enable = imxrt1020_clk_enable,
-	.disable = imxrt1020_clk_disable,
+	.set_rate = ccf_clk_set_rate,
+	.get_rate = ccf_clk_get_rate,
+	.enable = ccf_clk_enable,
+	.disable = ccf_clk_disable,
 };
 
 static const char * const pll2_bypass_sels[] = {"pll2_sys", "osc", };
diff --git a/drivers/clk/imx/clk-imxrt1050.c b/drivers/clk/imx/clk-imxrt1050.c
index 3e17161..5cb5e3b 100644
--- a/drivers/clk/imx/clk-imxrt1050.c
+++ b/drivers/clk/imx/clk-imxrt1050.c
@@ -15,89 +15,6 @@
 
 #include "clk.h"
 
-static ulong imxrt1050_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu)\n", __func__, clk->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_get_rate(c);
-}
-
-static ulong imxrt1050_clk_set_rate(struct clk *clk, ulong rate)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	return clk_set_rate(c, rate);
-}
-
-static int __imxrt1050_clk_enable(struct clk *clk, bool enable)
-{
-	struct clk *c;
-	int ret;
-
-	debug("%s(#%lu) en: %d\n", __func__, clk->id, enable);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	if (enable)
-		ret = clk_enable(c);
-	else
-		ret = clk_disable(c);
-
-	return ret;
-}
-
-static int imxrt1050_clk_disable(struct clk *clk)
-{
-	return __imxrt1050_clk_enable(clk, 0);
-}
-
-static int imxrt1050_clk_enable(struct clk *clk)
-{
-	return __imxrt1050_clk_enable(clk, 1);
-}
-
-static int imxrt1050_clk_set_parent(struct clk *clk, struct clk *parent)
-{
-	struct clk *c, *cp;
-	int ret;
-
-	debug("%s(#%lu), parent: %lu\n", __func__, clk->id, parent->id);
-
-	ret = clk_get_by_id(clk->id, &c);
-	if (ret)
-		return ret;
-
-	ret = clk_get_by_id(parent->id, &cp);
-	if (ret)
-		return ret;
-
-	return clk_set_parent(c, cp);
-}
-
-static struct clk_ops imxrt1050_clk_ops = {
-	.set_rate = imxrt1050_clk_set_rate,
-	.get_rate = imxrt1050_clk_get_rate,
-	.enable = imxrt1050_clk_enable,
-	.disable = imxrt1050_clk_disable,
-	.set_parent = imxrt1050_clk_set_parent,
-};
-
 static const char * const pll_ref_sels[] = {"osc", "dummy", };
 static const char * const pll1_bypass_sels[] = {"pll1_arm", "pll1_arm_ref_sel", };
 static const char * const pll2_bypass_sels[] = {"pll2_sys", "pll2_sys_ref_sel", };
@@ -317,7 +234,7 @@ U_BOOT_DRIVER(imxrt1050_clk) = {
 	.name = "clk_imxrt1050",
 	.id = UCLASS_CLK,
 	.of_match = imxrt1050_clk_ids,
-	.ops = &imxrt1050_clk_ops,
+	.ops = &ccf_clk_ops,
 	.probe = imxrt1050_clk_probe,
 	.flags = DM_FLAG_PRE_RELOC,
 };
diff --git a/drivers/clk/microchip/mpfs_clk.c b/drivers/clk/microchip/mpfs_clk.c
index 05d7647..67828c9 100644
--- a/drivers/clk/microchip/mpfs_clk.c
+++ b/drivers/clk/microchip/mpfs_clk.c
@@ -15,63 +15,6 @@
 
 #include "mpfs_clk.h"
 
-/* All methods are delegated to CCF clocks */
-
-static ulong mpfs_clk_get_rate(struct clk *clk)
-{
-	struct clk *c;
-	int err = clk_get_by_id(clk->id, &c);
-
-	if (err)
-		return err;
-	return clk_get_rate(c);
-}
-
-static ulong mpfs_clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	struct clk *c;
-	int err = clk_get_by_id(clk->id, &c);
-
-	if (err)
-		return err;
-	return clk_set_rate(c, rate);
-}
-
-static int mpfs_clk_set_parent(struct clk *clk, struct clk *parent)
-{
-	struct clk *c, *p;
-	int err = clk_get_by_id(clk->id, &c);
-
-	if (err)
-		return err;
-
-	err = clk_get_by_id(parent->id, &p);
-	if (err)
-		return err;
-
-	return clk_set_parent(c, p);
-}
-
-static int mpfs_clk_endisable(struct clk *clk, bool enable)
-{
-	struct clk *c;
-	int err = clk_get_by_id(clk->id, &c);
-
-	if (err)
-		return err;
-	return enable ? clk_enable(c) : clk_disable(c);
-}
-
-static int mpfs_clk_enable(struct clk *clk)
-{
-	return mpfs_clk_endisable(clk, true);
-}
-
-static int mpfs_clk_disable(struct clk *clk)
-{
-	return mpfs_clk_endisable(clk, false);
-}
-
 static int mpfs_clk_probe(struct udevice *dev)
 {
 	int ret;
@@ -100,14 +43,6 @@ static int mpfs_clk_probe(struct udevice *dev)
 	return ret;
 }
 
-static const struct clk_ops mpfs_clk_ops = {
-	.set_rate = mpfs_clk_set_rate,
-	.get_rate = mpfs_clk_get_rate,
-	.set_parent = mpfs_clk_set_parent,
-	.enable = mpfs_clk_enable,
-	.disable = mpfs_clk_disable,
-};
-
 static const struct udevice_id mpfs_of_match[] = {
 	{ .compatible = "microchip,mpfs-clkcfg" },
 	{ }
@@ -117,7 +52,7 @@ U_BOOT_DRIVER(mpfs_clk) = {
 	.name = "mpfs_clk",
 	.id = UCLASS_CLK,
 	.of_match = mpfs_of_match,
-	.ops = &mpfs_clk_ops,
+	.ops = &ccf_clk_ops,
 	.probe = mpfs_clk_probe,
 	.priv_auto = sizeof(struct clk),
 	.flags = DM_FLAG_PRE_RELOC,