use_maskOn 28 November 2015 at 10:38, Xinliang Liu xinliang.liu@linaro.org wrote:
Add crtc funcs and helper funcs for ADE.
Signed-off-by: Xinliang Liu xinliang.liu@linaro.org Signed-off-by: Xinwei Kong kong.kongxinwei@hisilicon.com Signed-off-by: Andy Green andy.green@linaro.org
--- /dev/null +++ b/drivers/gpu/drm/hisilicon/hisi_ade_reg.h
+#define ADE_CTRL (0x4) +#define ADE_CTRL1 (0x8C) +#define ADE_ROT_SRC_CFG (0x10) +#define ADE_DISP_SRC_CFG (0x18) +#define ADE_WDMA2_SRC_CFG (0x1C) +#define ADE_SEC_OVLY_SRC_CFG (0x20) +#define ADE_WDMA3_SRC_CFG (0x24) +#define ADE_OVLY1_TRANS_CFG (0x2C) +#define ADE_EN (0x100) +#define INTR_MASK_CPU_0 (0xC10) +#define INTR_MASK_CPU_1 (0xC14) +#define ADE_FRM_DISGARD_CTRL (0xA4) +/* reset and reload regs */ +#define ADE_SOFT_RST_SEL0 (0x78) +#define ADE_SOFT_RST_SEL1 (0x7C) +#define ADE_RELOAD_DIS0 (0xAC) +#define ADE_RELOAD_DIS1 (0xB0) +#define ADE_CH_RDMA_BIT_OFST (0) +#define ADE_CLIP_BIT_OFST (15) +#define ADE_SCL_BIT_OFST (21) +#define ADE_CTRAN_BIT_OFST (24) +#define ADE_OVLY_BIT_OFST (37) /* 32+5 */
Don't think we have any cases in drm where constants are wrapped in brackets. Is there any benefit of doing that here ?
+/* channel regs */ +#define RD_CH_PE(x) (0x1000 + (x) * 0x80)
... and I'm not talking about cases where the macros such as this one.
+union U_LDI_CTRL { +struct {
unsigned int ldi_en :1;unsigned int disp_mode_buf :1;unsigned int date_gate_en :1;unsigned int bpp :2;unsigned int wait_vsync_en :1;unsigned int corlorbar_width :7;unsigned int bgr :1;unsigned int color_mode :1;unsigned int shutdown :1;unsigned int vactive_line :12;unsigned int ldi_en_self_clr :1;unsigned int reserved_573 :3;} bits;unsigned int u32;+};
+union U_LDI_WORK_MODE { +struct {
unsigned int work_mode :1;unsigned int wback_en :1;unsigned int colorbar_en :1;unsigned int reserved_577 :29;} bits;unsigned int u32;+};
The struct in the above two unions is missing a level of indentation.
--- /dev/null +++ b/drivers/gpu/drm/hisilicon/hisi_drm_ade.c
+static void ade_ldi_set_mode(struct ade_crtc *acrtc,
struct drm_display_mode *mode,struct drm_display_mode *adj_mode)+{
struct ade_hw_ctx *ctx = acrtc->ctx;void __iomem *base = ctx->base;u32 out_w = mode->hdisplay;u32 out_h = mode->vdisplay;u32 hfp, hbp, hsw, vfp, vbp, vsw;u32 plr_flags;int ret;plr_flags = (mode->flags & DRM_MODE_FLAG_NVSYNC)? HISI_LDI_FLAG_NVSYNC : 0;plr_flags |= (mode->flags & DRM_MODE_FLAG_NHSYNC)? HISI_LDI_FLAG_NHSYNC : 0;hfp = mode->hsync_start - mode->hdisplay;hbp = mode->htotal - mode->hsync_end;hsw = mode->hsync_end - mode->hsync_start;vfp = mode->vsync_start - mode->vdisplay;vbp = mode->vtotal - mode->vsync_end;vsw = mode->vsync_end - mode->vsync_start;if (vsw > 15) {DRM_INFO("vsw exceeded 15\n");
DRM_ERROR or DRM_DEBUG_xx perhaps ?
vsw = 15;}writel((hbp << 20) | (hfp << 0), base + LDI_HRZ_CTRL0);/* p3-73 6220V100 pdf:* "The configured value is the actual width - 1"*/writel(hsw - 1, base + LDI_HRZ_CTRL1);writel((vbp << 20) | (vfp << 0), base + LDI_VRT_CTRL0);/* p3-74 6220V100 pdf:* "The configured value is the actual width - 1"*/writel(vsw - 1, base + LDI_VRT_CTRL1);/* p3-75 6220V100 pdf:* "The configured value is the actual width - 1"*/writel(((out_h - 1) << 20) | ((out_w - 1) << 0),base + LDI_DSP_SIZE);writel(plr_flags, base + LDI_PLR_CTRL);ret = clk_set_rate(ctx->ade_pix_clk, mode->clock * 1000);/* Success should be guaranteed in aotomic_check* failer shouldn't happen here*/if (ret)DRM_ERROR("set ade_pixel_clk_rate fail\n");
DItto
adj_mode->clock = clk_get_rate(ctx->ade_pix_clk) / 1000;/* ctran6 setting */writel(1, base + ADE_CTRAN_DIS(ADE_CTRAN6));writel(out_w * out_h - 1, base + ADE_CTRAN_IMAGE_SIZE(ADE_CTRAN6));acrtc->use_mask |= BIT(ADE_CTRAN_BIT_OFST + ADE_CTRAN6);DRM_INFO("set mode: %dx%d\n", out_w, out_h);
DRM_DEBUG_DRIVER ?
/** other parameters setting*/writel(BIT(0), base + LDI_WORK_MODE);writel((0x3c << 6) | (ADE_OUT_RGB_888 << 3) | BIT(2) | BIT(0),base + LDI_CTRL);set_reg(base + LDI_DE_SPACE_LOW, 0x1, 1, 1);+}
+static int ade_power_up(struct ade_hw_ctx *ctx) +{
void __iomem *media_base = ctx->media_base;int ret;ret = clk_set_rate(ctx->ade_core_clk, ctx->ade_core_rate);if (ret) {DRM_ERROR("clk_set_rate ade_core_rate error\n");
How about the following (or alike) less cryptic and more informative message. Other places could use a similar treatment.
"Failed to set rate X clk (%d)\n", ret ?
+static void ade_crtc_enable(struct drm_crtc *crtc) +{
struct ade_crtc *acrtc = to_ade_crtc(crtc);struct ade_hw_ctx *ctx = acrtc->ctx;int ret;DRM_DEBUG_DRIVER("enter.\n");
Does this and the remaining DEBUG_DRIVER(enter|exit) messages provide any meaningful input, past the driver development stage ?
if (acrtc->enable)return;
Esp. since we have cases like this where no message is available.
Regards, Emil