diff mbox series

[PATCHv7,01/11] clk: RK808: reduce 'struct rk808' usage

Message ID 20230307153617.643260-2-sebastian.reichel@collabora.com (mailing list archive)
State New, archived
Headers show
Series Introduce RK806 Support | expand

Commit Message

Sebastian Reichel March 7, 2023, 3:36 p.m. UTC 
Reduce usage of 'struct rk808' (driver data of the parent MFD), so
that only the chip variant field is still being accessed directly.
This allows restructuring the MFD driver to support SPI based
PMICs.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/clk/clk-rk808.c | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)

Comments

Stephen Boyd March 16, 2023, 11:21 p.m. UTC | #1 
Quoting Sebastian Reichel (2023-03-07 07:36:07)
> Reduce usage of 'struct rk808' (driver data of the parent MFD), so
> that only the chip variant field is still being accessed directly.
> This allows restructuring the MFD driver to support SPI based
> PMICs.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> ---

Acked-by: Stephen Boyd <sboyd@kernel.org>
diff mbox series

Patch

diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
index 32f833d732ed..f7412b137e5e 100644
--- a/drivers/clk/clk-rk808.c
+++ b/drivers/clk/clk-rk808.c
@@ -12,10 +12,9 @@ 
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/rk808.h>
-#include <linux/i2c.h>
 
 struct rk808_clkout {
-	struct rk808 *rk808;
+	struct regmap		*regmap;
 	struct clk_hw		clkout1_hw;
 	struct clk_hw		clkout2_hw;
 };
@@ -31,9 +30,8 @@  static int rk808_clkout2_enable(struct clk_hw *hw, bool enable)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 
-	return regmap_update_bits(rk808->regmap, RK808_CLK32OUT_REG,
+	return regmap_update_bits(rk808_clkout->regmap, RK808_CLK32OUT_REG,
 				  CLK32KOUT2_EN, enable ? CLK32KOUT2_EN : 0);
 }
 
@@ -52,10 +50,9 @@  static int rk808_clkout2_is_prepared(struct clk_hw *hw)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 	uint32_t val;
 
-	int ret = regmap_read(rk808->regmap, RK808_CLK32OUT_REG, &val);
+	int ret = regmap_read(rk808_clkout->regmap, RK808_CLK32OUT_REG, &val);
 
 	if (ret < 0)
 		return ret;
@@ -93,9 +90,8 @@  static int rk817_clkout2_enable(struct clk_hw *hw, bool enable)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 
-	return regmap_update_bits(rk808->regmap, RK817_SYS_CFG(1),
+	return regmap_update_bits(rk808_clkout->regmap, RK817_SYS_CFG(1),
 				  RK817_CLK32KOUT2_EN,
 				  enable ? RK817_CLK32KOUT2_EN : 0);
 }
@@ -115,10 +111,9 @@  static int rk817_clkout2_is_prepared(struct clk_hw *hw)
 	struct rk808_clkout *rk808_clkout = container_of(hw,
 							 struct rk808_clkout,
 							 clkout2_hw);
-	struct rk808 *rk808 = rk808_clkout->rk808;
 	unsigned int val;
 
-	int ret = regmap_read(rk808->regmap, RK817_SYS_CFG(1), &val);
+	int ret = regmap_read(rk808_clkout->regmap, RK817_SYS_CFG(1), &val);
 
 	if (ret < 0)
 		return 0;
@@ -153,18 +148,21 @@  static const struct clk_ops *rkpmic_get_ops(long variant)
 static int rk808_clkout_probe(struct platform_device *pdev)
 {
 	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
-	struct i2c_client *client = rk808->i2c;
-	struct device_node *node = client->dev.of_node;
+	struct device *dev = &pdev->dev;
 	struct clk_init_data init = {};
 	struct rk808_clkout *rk808_clkout;
 	int ret;
 
-	rk808_clkout = devm_kzalloc(&client->dev,
+	dev->of_node = pdev->dev.parent->of_node;
+
+	rk808_clkout = devm_kzalloc(dev,
 				    sizeof(*rk808_clkout), GFP_KERNEL);
 	if (!rk808_clkout)
 		return -ENOMEM;
 
-	rk808_clkout->rk808 = rk808;
+	rk808_clkout->regmap = dev_get_regmap(pdev->dev.parent, NULL);
+	if (!rk808_clkout->regmap)
+		return -ENODEV;
 
 	init.parent_names = NULL;
 	init.num_parents = 0;
@@ -173,10 +171,10 @@  static int rk808_clkout_probe(struct platform_device *pdev)
 	rk808_clkout->clkout1_hw.init = &init;
 
 	/* optional override of the clockname */
-	of_property_read_string_index(node, "clock-output-names",
+	of_property_read_string_index(dev->of_node, "clock-output-names",
 				      0, &init.name);
 
-	ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout1_hw);
+	ret = devm_clk_hw_register(dev, &rk808_clkout->clkout1_hw);
 	if (ret)
 		return ret;
 
@@ -185,10 +183,10 @@  static int rk808_clkout_probe(struct platform_device *pdev)
 	rk808_clkout->clkout2_hw.init = &init;
 
 	/* optional override of the clockname */
-	of_property_read_string_index(node, "clock-output-names",
+	of_property_read_string_index(dev->of_node, "clock-output-names",
 				      1, &init.name);
 
-	ret = devm_clk_hw_register(&client->dev, &rk808_clkout->clkout2_hw);
+	ret = devm_clk_hw_register(dev, &rk808_clkout->clkout2_hw);
 	if (ret)
 		return ret;