drm: sun4i: add quirks for TCON TOP (10ead694) · Commits · 戴 / test

drivers/gpu/drm/sun4i/sun8i_tcon_top.c

+28 −9

Original line number	Diff line number	Diff line
		@@ -9,11 +9,17 @@
		#include <linux/component.h>
		#include <linux/device.h>
		#include <linux/module.h>
		#include <linux/of_device.h>
		#include <linux/of_graph.h>
		#include <linux/platform_device.h>

		#include "sun8i_tcon_top.h"

		struct sun8i_tcon_top_quirks {
		bool has_tcon_tv1;
		bool has_dsi;
		};

		static bool sun8i_tcon_top_node_is_tcon_top(struct device_node *node)
		{
		return !!of_match_node(sun8i_tcon_top_of_table, node);
		@@ -121,10 +127,13 @@ static int sun8i_tcon_top_bind(struct device dev, struct device master,
		struct platform_device *pdev = to_platform_device(dev);
		struct clk_hw_onecell_data *clk_data;
		struct sun8i_tcon_top *tcon_top;
		const struct sun8i_tcon_top_quirks *quirks;
		struct resource *res;
		void __iomem *regs;
		int ret, i;

		quirks = of_device_get_match_data(&pdev->dev);

		tcon_top = devm_kzalloc(dev, sizeof(*tcon_top), GFP_KERNEL);
		if (!tcon_top)
		return -ENOMEM;
		@@ -187,11 +196,13 @@ static int sun8i_tcon_top_bind(struct device dev, struct device master,
		&tcon_top->reg_lock,
		TCON_TOP_TCON_TV0_GATE, 0);

		if (quirks->has_tcon_tv1)
		clk_data->hws[CLK_TCON_TOP_TV1] =
		sun8i_tcon_top_register_gate(dev, "tcon-tv1", regs,
		&tcon_top->reg_lock,
		TCON_TOP_TCON_TV1_GATE, 1);

		if (quirks->has_dsi)
		clk_data->hws[CLK_TCON_TOP_DSI] =
		sun8i_tcon_top_register_gate(dev, "dsi", regs,
		&tcon_top->reg_lock,
		@@ -257,9 +268,17 @@ static int sun8i_tcon_top_remove(struct platform_device *pdev)
		return 0;
		}

		const struct sun8i_tcon_top_quirks sun8i_r40_tcon_top_quirks = {
		.has_tcon_tv1 = true,
		.has_dsi = true,
		};

		/* sun4i_drv uses this list to check if a device node is a TCON TOP */
		const struct of_device_id sun8i_tcon_top_of_table[] = {
		{ .compatible = "allwinner,sun8i-r40-tcon-top" },
		{
		.compatible = "allwinner,sun8i-r40-tcon-top",
		.data = &sun8i_r40_tcon_top_quirks
		},
		{ /* sentinel */ }
		};
		MODULE_DEVICE_TABLE(of, sun8i_tcon_top_of_table);

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