leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm/mediatek: move hardware register to node data

Browse Source 
The address of register DPI_H_FRE_CON is different in different IC.
Using of_node data to find this address.

Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
This commit is contained in:
chunhui dai 2018-10-03 11:41:42 +08:00 committed by CK Hu
parent 4e90a6eb76
commit 0ace4b993c
2 changed files with 16 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/gpu/drm/mediatek/mtk_dpi.c
View File

@ -18,6 +18,7 @@
#include <linux/component.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/interrupt.h>
#include <linux/types.h>
@ -72,6 +73,7 @@ struct mtk_dpi {
struct clk *tvd_clk;
int irq;
struct drm_display_mode mode;
const struct mtk_dpi_conf *conf;
enum mtk_dpi_out_color_format color_format;
enum mtk_dpi_out_yc_map yc_map;
enum mtk_dpi_out_bit_num bit_num;
@ -110,6 +112,10 @@ struct mtk_dpi_yc_limit {
u16 c_bottom;
};
struct mtk_dpi_conf {
u32 reg_h_fre_con;
};
static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
{
u32 tmp = readl(dpi->regs + offset) & ~mask;
@ -335,7 +341,7 @@ static void mtk_dpi_config_swap_input(struct mtk_dpi *dpi, bool enable)
static void mtk_dpi_config_2n_h_fre(struct mtk_dpi *dpi)
{
mtk_dpi_mask(dpi, DPI_H_FRE_CON, H_FRE_2N, H_FRE_2N);
mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, H_FRE_2N, H_FRE_2N);
}
static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
@ -639,6 +645,10 @@ static const struct component_ops mtk_dpi_component_ops = {
.unbind = mtk_dpi_unbind,
};
static const struct mtk_dpi_conf mt8173_conf = {
.reg_h_fre_con = 0xe0,
};
static int mtk_dpi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@ -653,6 +663,7 @@ static int mtk_dpi_probe(struct platform_device *pdev)
return -ENOMEM;
dpi->dev = dev;
dpi->conf = (struct mtk_dpi_conf *)of_device_get_match_data(dev);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
dpi->regs = devm_ioremap_resource(dev, mem);
@ -732,8 +743,10 @@ static int mtk_dpi_remove(struct platform_device *pdev)
}
static const struct of_device_id mtk_dpi_of_ids[] = {
{ .compatible = "mediatek,mt8173-dpi", },
{}
{ .compatible = "mediatek,mt8173-dpi",
.data = &mt8173_conf,
},
{ },
};
struct platform_driver mtk_dpi_driver = {

1
drivers/gpu/drm/mediatek/mtk_dpi_regs.h
View File

@ -223,6 +223,5 @@
#define ESAV_CODE2 (0xFFF << 0)
#define ESAV_CODE3_MSB BIT(16)
#define DPI_H_FRE_CON 0xE0
#define H_FRE_2N BIT(25)
#endif /* __MTK_DPI_REGS_H */