* (at your option) any later version.
*/
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
+
#include <drm/drm_of.h>
#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include "rockchip_drm_drv.h"
#include "rockchip_drm_vop.h"
-#define GRF_SOC_CON6 0x025c
-#define HDMI_SEL_VOP_LIT (1 << 4)
+#define RK3288_GRF_SOC_CON6 0x025C
+#define RK3288_HDMI_LCDC_SEL BIT(4)
+#define RK3399_GRF_SOC_CON20 0x6250
+#define RK3399_HDMI_LCDC_SEL BIT(6)
+
+#define HIWORD_UPDATE(val, mask) (val | (mask) << 16)
struct rockchip_hdmi {
struct device *dev;
struct regmap *regmap;
struct drm_encoder encoder;
+ enum dw_hdmi_devtype dev_type;
+ struct clk *vpll_clk;
+ struct clk *grf_clk;
};
#define to_rockchip_hdmi(x) container_of(x, struct rockchip_hdmi, x)
+#define CLK_SLOP(clk) ((clk) / 1000)
+#define CLK_PLUS_SLOP(clk) ((clk) + CLK_SLOP(clk))
+
+static const int dw_hdmi_rates[] = {
+ 25176471, /* for 25.175 MHz, 0.006% off */
+ 25200000,
+ 27000000,
+ 28320000,
+ 30240000,
+ 31500000,
+ 32000000,
+ 33750000,
+ 36000000,
+ 40000000,
+ 49500000,
+ 50000000,
+ 54000000,
+ 57290323, /* for 57.284 MHz, .011 % off */
+ 65000000,
+ 68250000,
+ 71000000,
+ 72000000,
+ 73250000,
+ 74250000,
+ 74437500, /* for 74.44 MHz, .003% off */
+ 75000000,
+ 78750000,
+ 78800000,
+ 79500000,
+ 83500000,
+ 85500000,
+ 88750000,
+ 97750000,
+ 101000000,
+ 106500000,
+ 108000000,
+ 115500000,
+ 118666667, /* for 118.68 MHz, .011% off */
+ 119000000,
+ 121714286, /* for 121.75 MHz, .029% off */
+ 135000000,
+ 136800000, /* for 136.75 MHz, .037% off */
+ 146250000,
+ 148500000,
+ 154000000,
+ 162000000,
+ 297000000,
+ 594000000,
+};
+
+/*
+ * There are some rates that would be ranged for better clock jitter at
+ * Chrome OS tree, like 25.175Mhz would range to 25.170732Mhz. But due
+ * to the clock is aglined to KHz in struct drm_display_mode, this would
+ * bring some inaccurate error if we still run the compute_n math, so
+ * let's just code an const table for it until we can actually get the
+ * right clock rate.
+ */
+static const struct dw_hdmi_audio_tmds_n rockchip_werid_tmds_n_table[] = {
+ /* 25176471 for 25.175 MHz = 428000000 / 17. */
+ { .tmds = 25177000, .n_32k = 4352, .n_44k1 = 14994, .n_48k = 6528, },
+ /* 57290323 for 57.284 MHz */
+ { .tmds = 57291000, .n_32k = 3968, .n_44k1 = 4557, .n_48k = 5952, },
+ /* 74437500 for 74.44 MHz = 297750000 / 4 */
+ { .tmds = 74438000, .n_32k = 8192, .n_44k1 = 18816, .n_48k = 4096, },
+ /* 118666667 for 118.68 MHz */
+ { .tmds = 118667000, .n_32k = 4224, .n_44k1 = 5292, .n_48k = 6336, },
+ /* 121714286 for 121.75 MHz */
+ { .tmds = 121715000, .n_32k = 4480, .n_44k1 = 6174, .n_48k = 6272, },
+ /* 136800000 for 136.75 MHz */
+ { .tmds = 136800000, .n_32k = 4096, .n_44k1 = 5684, .n_48k = 6144, },
+ /* End of table */
+ { .tmds = 0, .n_32k = 0, .n_44k1 = 0, .n_48k = 0, },
+};
+
static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = {
{
- 27000000, {
- { 0x00b3, 0x0000},
- { 0x2153, 0x0000},
- { 0x40f3, 0x0000}
+ 30666000, {
+ { 0x00b3, 0x0000 },
+ { 0x2153, 0x0000 },
+ { 0x40f3, 0x0000 },
},
- }, {
- 36000000, {
- { 0x00b3, 0x0000},
- { 0x2153, 0x0000},
- { 0x40f3, 0x0000}
+ }, {
+ 36800000, {
+ { 0x00b3, 0x0000 },
+ { 0x2153, 0x0000 },
+ { 0x40a2, 0x0001 },
},
- }, {
- 40000000, {
- { 0x00b3, 0x0000},
- { 0x2153, 0x0000},
- { 0x40f3, 0x0000}
+ }, {
+ 46000000, {
+ { 0x00b3, 0x0000 },
+ { 0x2142, 0x0001 },
+ { 0x40a2, 0x0001 },
},
- }, {
- 54000000, {
- { 0x0072, 0x0001},
- { 0x2142, 0x0001},
- { 0x40a2, 0x0001},
+ }, {
+ 61333000, {
+ { 0x0072, 0x0001 },
+ { 0x2142, 0x0001 },
+ { 0x40a2, 0x0001 },
},
- }, {
- 65000000, {
- { 0x0072, 0x0001},
- { 0x2142, 0x0001},
- { 0x40a2, 0x0001},
+ }, {
+ 73600000, {
+ { 0x0072, 0x0001 },
+ { 0x2142, 0x0001 },
+ { 0x4061, 0x0002 },
},
- }, {
- 66000000, {
- { 0x013e, 0x0003},
- { 0x217e, 0x0002},
- { 0x4061, 0x0002}
+ }, {
+ 92000000, {
+ { 0x0072, 0x0001 },
+ { 0x2145, 0x0002 },
+ { 0x4061, 0x0002 },
},
- }, {
- 74250000, {
- { 0x0072, 0x0001},
- { 0x2145, 0x0002},
- { 0x4061, 0x0002}
+ }, {
+ 122666000, {
+ { 0x0051, 0x0002 },
+ { 0x2145, 0x0002 },
+ { 0x4061, 0x0002 },
},
- }, {
- 83500000, {
- { 0x0072, 0x0001},
+ }, {
+ 147200000, {
+ { 0x0051, 0x0002 },
+ { 0x2145, 0x0002 },
+ { 0x4064, 0x0003 },
},
- }, {
- 108000000, {
- { 0x0051, 0x0002},
- { 0x2145, 0x0002},
- { 0x4061, 0x0002}
+ }, {
+ 184000000, {
+ { 0x0051, 0x0002 },
+ { 0x214c, 0x0003 },
+ { 0x4064, 0x0003 },
},
- }, {
- 106500000, {
- { 0x0051, 0x0002},
- { 0x2145, 0x0002},
- { 0x4061, 0x0002}
+ }, {
+ 226666000, {
+ { 0x0040, 0x0003 },
+ { 0x214c, 0x0003 },
+ { 0x4064, 0x0003 },
},
- }, {
- 146250000, {
- { 0x0051, 0x0002},
- { 0x2145, 0x0002},
- { 0x4061, 0x0002}
+ }, {
+ 272000000, {
+ { 0x0040, 0x0003 },
+ { 0x214c, 0x0003 },
+ { 0x5a64, 0x0003 },
},
- }, {
- 148500000, {
- { 0x0051, 0x0003},
- { 0x214c, 0x0003},
- { 0x4064, 0x0003}
+ }, {
+ 340000000, {
+ { 0x0040, 0x0003 },
+ { 0x3b4c, 0x0003 },
+ { 0x5a64, 0x0003 },
},
- }, {
+ }, {
+ 600000000, {
+ { 0x1a40, 0x0003 },
+ { 0x3b4c, 0x0003 },
+ { 0x5a64, 0x0003 },
+ },
+ }, {
~0UL, {
- { 0x00a0, 0x000a },
- { 0x2001, 0x000f },
- { 0x4002, 0x000f },
+ { 0x0000, 0x0000 },
+ { 0x0000, 0x0000 },
+ { 0x0000, 0x0000 },
},
}
};
static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
/* pixelclk bpp8 bpp10 bpp12 */
{
- 40000000, { 0x0018, 0x0018, 0x0018 },
- }, {
- 65000000, { 0x0028, 0x0028, 0x0028 },
- }, {
- 66000000, { 0x0038, 0x0038, 0x0038 },
- }, {
- 74250000, { 0x0028, 0x0038, 0x0038 },
- }, {
- 83500000, { 0x0028, 0x0038, 0x0038 },
- }, {
- 146250000, { 0x0038, 0x0038, 0x0038 },
- }, {
- 148500000, { 0x0000, 0x0038, 0x0038 },
- }, {
+ 600000000, { 0x0000, 0x0000, 0x0000 },
+ }, {
~0UL, { 0x0000, 0x0000, 0x0000},
}
};
static const struct dw_hdmi_phy_config rockchip_phy_config[] = {
/*pixelclk symbol term vlev*/
{ 74250000, 0x8009, 0x0004, 0x0272},
- { 148500000, 0x802b, 0x0004, 0x028d},
+ { 165000000, 0x802b, 0x0004, 0x0209},
{ 297000000, 0x8039, 0x0005, 0x028d},
{ ~0UL, 0x0000, 0x0000, 0x0000}
};
static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi)
{
struct device_node *np = hdmi->dev->of_node;
+ int ret;
hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
if (IS_ERR(hdmi->regmap)) {
return PTR_ERR(hdmi->regmap);
}
+ hdmi->vpll_clk = devm_clk_get(hdmi->dev, "vpll");
+ if (PTR_ERR(hdmi->vpll_clk) == -ENOENT) {
+ hdmi->vpll_clk = NULL;
+ } else if (PTR_ERR(hdmi->vpll_clk) == -EPROBE_DEFER) {
+ return -EPROBE_DEFER;
+ } else if (IS_ERR(hdmi->vpll_clk)) {
+ dev_err(hdmi->dev, "failed to get grf clock\n");
+ return PTR_ERR(hdmi->vpll_clk);
+ }
+
+ hdmi->grf_clk = devm_clk_get(hdmi->dev, "grf");
+ if (PTR_ERR(hdmi->grf_clk) == -ENOENT) {
+ hdmi->grf_clk = NULL;
+ } else if (PTR_ERR(hdmi->grf_clk) == -EPROBE_DEFER) {
+ return -EPROBE_DEFER;
+ } else if (IS_ERR(hdmi->grf_clk)) {
+ dev_err(hdmi->dev, "failed to get grf clock\n");
+ return PTR_ERR(hdmi->grf_clk);
+ }
+
+ ret = clk_prepare_enable(hdmi->vpll_clk);
+ if (ret) {
+ dev_err(hdmi->dev, "Failed to enable HDMI vpll: %d\n", ret);
+ return ret;
+ }
+
return 0;
}
dw_hdmi_rockchip_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
{
- const struct dw_hdmi_mpll_config *mpll_cfg = rockchip_mpll_cfg;
int pclk = mode->clock * 1000;
- bool valid = false;
+ int num_rates = ARRAY_SIZE(dw_hdmi_rates);
int i;
- for (i = 0; mpll_cfg[i].mpixelclock != (~0UL); i++) {
- if (pclk == mpll_cfg[i].mpixelclock) {
- valid = true;
- break;
- }
+ /*
+ * Pixel clocks we support are always < 2GHz and so fit in an
+ * int. We should make sure source rate does too so we don't get
+ * overflow when we multiply by 1000.
+ */
+ if (mode->clock > INT_MAX / 1000)
+ return MODE_BAD;
+
+ for (i = 0; i < num_rates; i++) {
+ int slop = CLK_SLOP(pclk);
+
+ if ((pclk >= dw_hdmi_rates[i] - slop) &&
+ (pclk <= dw_hdmi_rates[i] + slop))
+ return MODE_OK;
}
- return (valid) ? MODE_OK : MODE_BAD;
+ return MODE_BAD;
}
-static struct drm_encoder_funcs dw_hdmi_rockchip_encoder_funcs = {
+static const struct drm_encoder_funcs dw_hdmi_rockchip_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
const struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
- return true;
+ struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
+ int pclk = adj_mode->clock * 1000;
+ int best_diff = INT_MAX;
+ int best_clock = 0;
+ int slop;
+ int i;
+
+ /* Pick the best clock */
+ for (i = 0; i < ARRAY_SIZE(dw_hdmi_rates); i++) {
+ int diff = dw_hdmi_rates[i] - pclk;
+
+ if (diff < 0)
+ diff = -diff;
+ if (diff < best_diff) {
+ best_diff = diff;
+ best_clock = dw_hdmi_rates[i];
+
+ /* Bail early if we're exact */
+ if (best_diff == 0)
+ return true;
+ }
+ }
+
+ /* Double check that it's OK */
+ slop = CLK_SLOP(pclk);
+ if ((pclk >= best_clock - slop) && (pclk <= best_clock + slop)) {
+ adj_mode->clock = DIV_ROUND_UP(best_clock, 1000);
+ return true;
+ }
+
+ /* Shoudn't be here; we should have said rate wasn't valid */
+ dev_warn(hdmi->dev, "tried to set invalid rate %d\n", adj_mode->clock);
+ return false;
}
static void dw_hdmi_rockchip_encoder_mode_set(struct drm_encoder *encoder,
struct drm_display_mode *mode,
struct drm_display_mode *adj_mode)
{
+ struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
+
+ clk_set_rate(hdmi->vpll_clk, adj_mode->clock * 1000);
}
-static void dw_hdmi_rockchip_encoder_commit(struct drm_encoder *encoder)
+static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
{
struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
+ u32 lcdsel_grf_reg, lcdsel_mask;
u32 val;
int mux;
+ int ret;
- mux = rockchip_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder);
+ switch (hdmi->dev_type) {
+ case RK3288_HDMI:
+ lcdsel_grf_reg = RK3288_GRF_SOC_CON6;
+ lcdsel_mask = RK3288_HDMI_LCDC_SEL;
+ break;
+ case RK3399_HDMI:
+ lcdsel_grf_reg = RK3399_GRF_SOC_CON20;
+ lcdsel_mask = RK3399_HDMI_LCDC_SEL;
+ break;
+ default:
+ return;
+ };
+
+ mux = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
if (mux)
- val = HDMI_SEL_VOP_LIT | (HDMI_SEL_VOP_LIT << 16);
+ val = HIWORD_UPDATE(lcdsel_mask, lcdsel_mask);
else
- val = HDMI_SEL_VOP_LIT << 16;
+ val = HIWORD_UPDATE(0, lcdsel_mask);
- regmap_write(hdmi->regmap, GRF_SOC_CON6, val);
+ ret = clk_prepare_enable(hdmi->grf_clk);
+ if (ret < 0) {
+ dev_err(hdmi->dev, "failed to enable grfclk %d\n", ret);
+ return;
+ }
+
+ regmap_write(hdmi->regmap, lcdsel_grf_reg, val);
dev_dbg(hdmi->dev, "vop %s output to hdmi\n",
(mux) ? "LIT" : "BIG");
+
+ clk_disable_unprepare(hdmi->grf_clk);
}
-static void dw_hdmi_rockchip_encoder_prepare(struct drm_encoder *encoder)
+static int
+dw_hdmi_rockchip_encoder_atomic_check(struct drm_encoder *encoder,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
{
- rockchip_drm_crtc_mode_config(encoder->crtc, DRM_MODE_CONNECTOR_HDMIA,
- ROCKCHIP_OUT_MODE_AAAA);
+ struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
+
+ s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
+ s->output_type = DRM_MODE_CONNECTOR_HDMIA;
+ s->bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+
+ return 0;
}
-static struct drm_encoder_helper_funcs dw_hdmi_rockchip_encoder_helper_funcs = {
+static const struct drm_encoder_helper_funcs dw_hdmi_rockchip_encoder_helper_funcs = {
.mode_fixup = dw_hdmi_rockchip_encoder_mode_fixup,
.mode_set = dw_hdmi_rockchip_encoder_mode_set,
- .prepare = dw_hdmi_rockchip_encoder_prepare,
- .commit = dw_hdmi_rockchip_encoder_commit,
+ .enable = dw_hdmi_rockchip_encoder_enable,
.disable = dw_hdmi_rockchip_encoder_disable,
+ .atomic_check = dw_hdmi_rockchip_encoder_atomic_check,
};
-static const struct dw_hdmi_plat_data rockchip_hdmi_drv_data = {
+static const struct dw_hdmi_plat_data rk3288_hdmi_drv_data = {
.mode_valid = dw_hdmi_rockchip_mode_valid,
.mpll_cfg = rockchip_mpll_cfg,
.cur_ctr = rockchip_cur_ctr,
.phy_config = rockchip_phy_config,
.dev_type = RK3288_HDMI,
+ .tmds_n_table = rockchip_werid_tmds_n_table,
+};
+
+static const struct dw_hdmi_plat_data rk3399_hdmi_drv_data = {
+ .mode_valid = dw_hdmi_rockchip_mode_valid,
+ .mpll_cfg = rockchip_mpll_cfg,
+ .cur_ctr = rockchip_cur_ctr,
+ .phy_config = rockchip_phy_config,
+ .dev_type = RK3399_HDMI,
};
static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
{ .compatible = "rockchip,rk3288-dw-hdmi",
- .data = &rockchip_hdmi_drv_data
+ .data = &rk3288_hdmi_drv_data
+ },
+ { .compatible = "rockchip,rk3399-dw-hdmi",
+ .data = &rk3399_hdmi_drv_data
},
{},
};
match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node);
plat_data = match->data;
hdmi->dev = &pdev->dev;
+ hdmi->dev_type = plat_data->dev_type;
encoder = &hdmi->encoder;
irq = platform_get_irq(pdev, 0);
if (!iores)
return -ENXIO;
- platform_set_drvdata(pdev, hdmi);
-
encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
/*
* If we failed to find the CRTC(s) which this encoder is
drm_encoder_helper_add(encoder, &dw_hdmi_rockchip_encoder_helper_funcs);
drm_encoder_init(drm, encoder, &dw_hdmi_rockchip_encoder_funcs,
- DRM_MODE_ENCODER_TMDS);
+ DRM_MODE_ENCODER_TMDS, NULL);
+
+ ret = dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
+
+ /*
+ * If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(),
+ * which would have called the encoder cleanup. Do it manually.
+ */
+ if (ret)
+ drm_encoder_cleanup(encoder);
- return dw_hdmi_bind(dev, master, data, encoder, iores, irq, plat_data);
+ return ret;
}
static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master,
projects / firefly-linux-kernel-4.4.55.git / blobdiff