[PATCH v2 2/2] pmdomain: sunxi: Add support for A733 to Allwinner PCK600 driver

[Yuanshen Cao]

The Allwinner A733 PCK600, similar to A523 PCK600, is likely a
customized version of ARM PCK-600 power controller. It shares the same
BSP driver with A523. According to the BSP provided by Radxa, unlike
A523, it doesn't require reset, as well as a different pair of delay
values.

Make reset optional in the sunxi pck600 driver and add support
for A733.

Signed-off-by: Yuanshen Cao <alex.caoys@xxxxxxxxx>
---
 drivers/pmdomain/sunxi/sun55i-pck600.c | 35 ++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/drivers/pmdomain/sunxi/sun55i-pck600.c b/drivers/pmdomain/sunxi/sun55i-pck600.c
index c7ab51514531..1d47bbd35ced 100644
--- a/drivers/pmdomain/sunxi/sun55i-pck600.c
+++ b/drivers/pmdomain/sunxi/sun55i-pck600.c
@@ -52,6 +52,7 @@ struct sunxi_pck600_desc {
 	u32 logic_power_switch0_delay;
 	u32 logic_power_switch1_delay;
 	u32 off2on_delay;
+	bool has_rst_clk;
 };
 
 struct sunxi_pck600_pd {
@@ -151,9 +152,11 @@ static int sunxi_pck600_probe(struct platform_device *pdev)
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 
-	rst = devm_reset_control_get_exclusive_released(dev, NULL);
-	if (IS_ERR(rst))
-		return dev_err_probe(dev, PTR_ERR(rst), "failed to get reset control\n");
+	if (desc->has_rst_clk) {
+		rst = devm_reset_control_get_exclusive_released(dev, NULL);
+		if (IS_ERR(rst))
+			return dev_err_probe(dev, PTR_ERR(rst), "failed to get reset control\n");
+	}
 
 	clk = devm_clk_get_enabled(dev, NULL);
 	if (IS_ERR(clk))
@@ -206,7 +209,27 @@ static const struct sunxi_pck600_desc sun55i_a523_pck600_desc = {
 	.device_ctrl1_delay = 0xffff,
 	.logic_power_switch0_delay = 0x8080808,
 	.logic_power_switch1_delay = 0x808,
-	.off2on_delay = 0x8
+	.off2on_delay = 0x8,
+	.has_rst_clk = true,
+};
+
+static const char * const sun60i_a733_pck600_pd_names[] = {
+	"VI", "DE_SYS", "VE_DEC", "VE_ENC", "NPU",
+	"GPU_TOP", "GPU_CORE", "PCIE", "USB2", "VO", "VO1"
+};
+
+static const struct sunxi_pck600_desc sun60i_a733_pck600_desc = {
+	.pd_names = sun60i_a733_pck600_pd_names,
+	.num_domains = ARRAY_SIZE(sun60i_a733_pck600_pd_names),
+	.logic_power_switch0_delay_offset = 0xc00,
+	.logic_power_switch1_delay_offset = 0xc04,
+	.off2on_delay_offset = 0xc10,
+	.device_ctrl0_delay = 0x1f1f1f,
+	.device_ctrl1_delay = 0x1f1f,
+	.logic_power_switch0_delay = 0x8080808,
+	.logic_power_switch1_delay = 0x808,
+	.off2on_delay = 0x8,
+	.has_rst_clk = false,
 };
 
 static const struct of_device_id sunxi_pck600_of_match[] = {
@@ -214,6 +237,10 @@ static const struct of_device_id sunxi_pck600_of_match[] = {
 		.compatible	= "allwinner,sun55i-a523-pck-600",
 		.data		= &sun55i_a523_pck600_desc,
 	},
+	{
+		.compatible	= "allwinner,sun60i-a733-pck-600",
+		.data		= &sun60i_a733_pck600_desc,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, sunxi_pck600_of_match);

-- 
2.53.0