#include <drm/drm_crtc_helper.h>
#include <drm/drm_edid.h>
#include <drm/drm_encoder_slave.h>
+#include <drm/drm_scdc_helper.h>
#include <drm/bridge/dw_hdmi.h>
+#ifdef CONFIG_SWITCH
+#include <linux/switch.h>
+#endif
#include "dw-hdmi.h"
#include "dw-hdmi-audio.h"
#define HDMI_EDID_LEN 512
+#define DDC_SEGMENT_ADDR 0x30
#define RGB 0
#define YCBCR444 1
#define YCBCR422_16BITS 2
#define YCBCR422_8BITS 3
#define XVYCC444 4
+#define YCBCR420 5
enum hdmi_datamap {
RGB444_8B = 0x01,
u8 slave_reg;
bool is_regaddr;
+ bool is_segment;
};
struct dw_hdmi {
unsigned int audio_n;
bool audio_enable;
+#ifdef CONFIG_SWITCH
+ struct switch_dev switchdev;
+#endif
+ int irq;
+
void (*write)(struct dw_hdmi *hdmi, u8 val, int offset);
u8 (*read)(struct dw_hdmi *hdmi, int offset);
};
reinit_completion(&i2c->cmp);
hdmi_writeb(hdmi, i2c->slave_reg++, HDMI_I2CM_ADDRESS);
- hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ,
- HDMI_I2CM_OPERATION);
+ if (i2c->is_segment)
+ hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ_EXT,
+ HDMI_I2CM_OPERATION);
+ else
+ hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ,
+ HDMI_I2CM_OPERATION);
stat = wait_for_completion_timeout(&i2c->cmp, HZ / 10);
if (!stat)
*buf++ = hdmi_readb(hdmi, HDMI_I2CM_DATAI);
}
+ i2c->is_segment = false;
return 0;
}
dev_dbg(hdmi->dev, "xfer: num: %d, addr: %#x\n", num, addr);
for (i = 0; i < num; i++) {
- if (msgs[i].addr != addr) {
- dev_warn(hdmi->dev,
- "unsupported transfer, changed slave address\n");
- return -EOPNOTSUPP;
- }
-
if (msgs[i].len == 0) {
dev_dbg(hdmi->dev,
"unsupported transfer %d/%d, no data\n",
/* Set slave device register address on transfer */
i2c->is_regaddr = false;
+ /* Set segment pointer for I2C extended read mode operation */
+ i2c->is_segment = false;
+
for (i = 0; i < num; i++) {
dev_dbg(hdmi->dev, "xfer: num: %d/%d, len: %d, flags: %#x\n",
i + 1, num, msgs[i].len, msgs[i].flags);
-
- if (msgs[i].flags & I2C_M_RD)
- ret = dw_hdmi_i2c_read(hdmi, msgs[i].buf, msgs[i].len);
- else
- ret = dw_hdmi_i2c_write(hdmi, msgs[i].buf, msgs[i].len);
-
+ if (msgs[i].addr == DDC_SEGMENT_ADDR && msgs[i].len == 1) {
+ i2c->is_segment = true;
+ hdmi_writeb(hdmi, DDC_SEGMENT_ADDR, HDMI_I2CM_SEGADDR);
+ hdmi_writeb(hdmi, *msgs[i].buf, HDMI_I2CM_SEGPTR);
+ } else {
+ if (msgs[i].flags & I2C_M_RD)
+ ret = dw_hdmi_i2c_read(hdmi, msgs[i].buf,
+ msgs[i].len);
+ else
+ ret = dw_hdmi_i2c_write(hdmi, msgs[i].buf,
+ msgs[i].len);
+ }
if (ret < 0)
break;
}
color_format = 0x07;
else
return;
- } else if (hdmi->hdmi_data.enc_in_format == YCBCR444) {
+ } else if (hdmi->hdmi_data.enc_in_format == YCBCR444 ||
+ hdmi->hdmi_data.enc_in_format == YCBCR420) {
if (hdmi->hdmi_data.enc_color_depth == 8)
color_format = 0x09;
else if (hdmi->hdmi_data.enc_color_depth == 10)
u8 val, vp_conf;
if (hdmi_data->enc_out_format == RGB ||
- hdmi_data->enc_out_format == YCBCR444) {
+ hdmi_data->enc_out_format == YCBCR444 ||
+ hdmi_data->enc_out_format == YCBCR420) {
if (!hdmi_data->enc_color_depth) {
output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
} else if (hdmi_data->enc_color_depth == 8) {
HDMI_VP_STUFF_PR_STUFFING_MASK, HDMI_VP_STUFF);
/* Data from pixel repeater block */
- if (hdmi_data->pix_repet_factor > 1) {
+ if (hdmi_data->pix_repet_factor > 0) {
vp_conf = HDMI_VP_CONF_PR_EN_ENABLE |
HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER;
} else { /* data from packetizer block */
unsigned char res, int cscon)
{
unsigned res_idx;
- u8 val, msec;
+ u8 val, msec, tmds_cfg;
const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
const struct dw_hdmi_mpll_config *mpll_config = pdata->mpll_cfg;
const struct dw_hdmi_curr_ctrl *curr_ctrl = pdata->cur_ctr;
/* gen2 pddq */
dw_hdmi_phy_gen2_pddq(hdmi, 1);
+ /* Control for TMDS Bit Period/TMDS Clock-Period Ratio */
+ if (hdmi->connector.scdc_present) {
+ drm_scdc_readb(hdmi->ddc, SCDC_TMDS_CONFIG, &tmds_cfg);
+ if (mpll_config->mpixelclock > 340000000)
+ tmds_cfg |= 2;
+ else
+ tmds_cfg &= 0x1;
+ drm_scdc_writeb(hdmi->ddc, SCDC_TMDS_CONFIG, tmds_cfg);
+ }
+
/* PHY reset */
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_DEASSERT, HDMI_MC_PHYRSTZ);
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_ASSERT, HDMI_MC_PHYRSTZ);
hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2,
HDMI_PHY_I2CM_SLAVE_ADDR);
hdmi_phy_test_clear(hdmi, 0);
-
- hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].cpce, 0x06);
+ /*
+ * RK3399 mpll clock source is vpll, also is vop clock source.
+ * vpll rate is twice of mpixelclock in YCBCR420 mode, we need
+ * to enable mpll pre-divider.
+ */
+ if (hdmi->hdmi_data.enc_in_format == YCBCR420 &&
+ hdmi->dev_type == RK3399_HDMI)
+ hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].cpce | 4,
+ 0x06);
+ else
+ hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].cpce, 0x06);
hdmi_phy_i2c_write(hdmi, mpll_config->res[res_idx].gmp, 0x15);
/* CURRCTRL */
dw_hdmi_phy_enable_powerdown(hdmi, false);
- /* toggle TMDS enable */
+ /* toggle TMDS disable */
dw_hdmi_phy_enable_tmds(hdmi, 0);
+
+ /* Wait for resuming transmission of TMDS clock and data */
+ if (mpll_config->mpixelclock > 340000000)
+ msleep(100);
+
+ /* toggle TMDS enable */
dw_hdmi_phy_enable_tmds(hdmi, 1);
/* gen2 tx power on */
if (is_rockchip(hdmi->dev_type))
dw_hdmi_phy_enable_spare(hdmi, 1);
- /*Wait for PHY PLL lock */
+ /* Wait for PHY PLL lock */
msec = 5;
do {
val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK;
frame.colorspace = HDMI_COLORSPACE_YUV444;
else if (hdmi->hdmi_data.enc_out_format == YCBCR422_8BITS)
frame.colorspace = HDMI_COLORSPACE_YUV422;
+ else if (hdmi->hdmi_data.enc_out_format == YCBCR420)
+ frame.colorspace = HDMI_COLORSPACE_YUV420;
else
frame.colorspace = HDMI_COLORSPACE_RGB;
*/
/*
- * AVI data byte 1 differences: Colorspace in bits 4,5 rather than 5,6,
- * active aspect present in bit 6 rather than 4.
+ * AVI data byte 1 differences: Colorspace in bits 0,1,7 rather than
+ * 5,6,7, active aspect present in bit 6 rather than 4.
*/
- val = (frame.colorspace & 3) << 4 | (frame.scan_mode & 0x3);
+ val = (frame.scan_mode & 3) << 4 | (frame.colorspace & 0x3);
if (frame.active_aspect & 15)
val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT;
if (frame.top_bar || frame.bottom_bar)
hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1);
}
+static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi,
+ struct drm_display_mode *mode)
+{
+ struct hdmi_vendor_infoframe frame;
+ u8 buffer[10];
+ ssize_t err;
+
+ /* Disable HDMI vendor specific infoframe send */
+ hdmi_mask_writeb(hdmi, 0, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET,
+ HDMI_FC_DATAUTO0_VSD_MASK);
+
+ err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, mode);
+ if (err < 0)
+ /*
+ * Going into that statement does not means vendor infoframe
+ * fails. It just informed us that vendor infoframe is not
+ * needed for the selected mode. Only 4k or stereoscopic 3D
+ * mode requires vendor infoframe. So just simply return.
+ */
+ return;
+
+ err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
+ if (err < 0) {
+ dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n",
+ err);
+ return;
+ }
+
+ /* Set the length of HDMI vendor specific InfoFrame payload */
+ hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE);
+
+ /* Set 24bit IEEE Registration Identifier */
+ hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0);
+ hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1);
+ hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2);
+
+ /* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */
+ hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0);
+ hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1);
+
+ if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
+ hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2);
+
+ /* Packet frame interpolation */
+ hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1);
+
+ /* Auto packets per frame and line spacing */
+ hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2);
+
+ /* Configures the Frame Composer On RDRB mode */
+ hdmi_mask_writeb(hdmi, 1, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET,
+ HDMI_FC_DATAUTO0_VSD_MASK);
+}
+
static void hdmi_av_composer(struct dw_hdmi *hdmi,
const struct drm_display_mode *mode)
{
- u8 inv_val;
+ u8 inv_val, bytes;
struct hdmi_vmode *vmode = &hdmi->hdmi_data.video_mode;
int hblank, vblank, h_de_hs, v_de_vs, hsync_len, vsync_len;
- unsigned int vdisplay;
-
- vmode->mpixelclock = mode->clock * 1000;
+ unsigned int hdisplay, vdisplay;
+ vmode->mpixelclock = mode->crtc_clock * 1000;
+ if (mode->flags & DRM_MODE_FLAG_420_MASK)
+ vmode->mpixelclock /= 2;
dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock);
- /* Set up HDMI_FC_INVIDCONF */
- inv_val = (hdmi->hdmi_data.hdcp_enable ?
+ /* Set up HDMI_FC_INVIDCONF
+ * fc_invidconf.HDCP_keepout must be set (1'b1)
+ * when activate the scrambler feature.
+ */
+ inv_val = (hdmi->hdmi_data.hdcp_enable ||
+ vmode->mpixelclock > 340000000 ||
+ hdmi->connector.lte_340mcsc_scramble ?
HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE :
HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE);
hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF);
+ hdisplay = mode->hdisplay;
+ hblank = mode->htotal - mode->hdisplay;
+ h_de_hs = mode->hsync_start - mode->hdisplay;
+ hsync_len = mode->hsync_end - mode->hsync_start;
+
+ /*
+ * When we're setting a YCbCr420 mode, we need
+ * to adjust the horizontal timing to suit.
+ */
+ if (mode->flags & DRM_MODE_FLAG_420_MASK) {
+ hdisplay /= 2;
+ hblank /= 2;
+ h_de_hs /= 2;
+ hsync_len /= 2;
+ }
+
vdisplay = mode->vdisplay;
vblank = mode->vtotal - mode->vdisplay;
v_de_vs = mode->vsync_start - mode->vdisplay;
vsync_len /= 2;
}
+ /* Scrambling Control */
+ if (hdmi->connector.scdc_present) {
+ if (vmode->mpixelclock > 340000000 ||
+ hdmi->connector.lte_340mcsc_scramble) {
+ drm_scdc_readb(&hdmi->i2c->adap, SCDC_SINK_VERSION,
+ &bytes);
+ drm_scdc_writeb(&hdmi->i2c->adap, SCDC_SOURCE_VERSION,
+ bytes);
+ drm_scdc_writeb(&hdmi->i2c->adap, SCDC_TMDS_CONFIG, 1);
+ hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ,
+ HDMI_MC_SWRSTZ);
+ hdmi_writeb(hdmi, 1, HDMI_FC_SCRAMBLER_CTRL);
+ } else {
+ hdmi_writeb(hdmi, 0, HDMI_FC_SCRAMBLER_CTRL);
+ hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ,
+ HDMI_MC_SWRSTZ);
+ drm_scdc_writeb(&hdmi->i2c->adap, SCDC_TMDS_CONFIG, 0);
+ }
+ }
+
/* Set up horizontal active pixel width */
- hdmi_writeb(hdmi, mode->hdisplay >> 8, HDMI_FC_INHACTV1);
- hdmi_writeb(hdmi, mode->hdisplay, HDMI_FC_INHACTV0);
+ hdmi_writeb(hdmi, hdisplay >> 8, HDMI_FC_INHACTV1);
+ hdmi_writeb(hdmi, hdisplay, HDMI_FC_INHACTV0);
/* Set up vertical active lines */
hdmi_writeb(hdmi, vdisplay >> 8, HDMI_FC_INVACTV1);
hdmi_writeb(hdmi, vdisplay, HDMI_FC_INVACTV0);
/* Set up horizontal blanking pixel region width */
- hblank = mode->htotal - mode->hdisplay;
hdmi_writeb(hdmi, hblank >> 8, HDMI_FC_INHBLANK1);
hdmi_writeb(hdmi, hblank, HDMI_FC_INHBLANK0);
hdmi_writeb(hdmi, vblank, HDMI_FC_INVBLANK);
/* Set up HSYNC active edge delay width (in pixel clks) */
- h_de_hs = mode->hsync_start - mode->hdisplay;
hdmi_writeb(hdmi, h_de_hs >> 8, HDMI_FC_HSYNCINDELAY1);
hdmi_writeb(hdmi, h_de_hs, HDMI_FC_HSYNCINDELAY0);
hdmi_writeb(hdmi, v_de_vs, HDMI_FC_VSYNCINDELAY);
/* Set up HSYNC active pulse width (in pixel clks) */
- hsync_len = mode->hsync_end - mode->hsync_start;
hdmi_writeb(hdmi, hsync_len >> 8, HDMI_FC_HSYNCINWIDTH1);
hdmi_writeb(hdmi, hsync_len, HDMI_FC_HSYNCINWIDTH0);
clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_DISABLE;
hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
}
+
+ /* Enable pixel repetition path */
+ if (hdmi->hdmi_data.video_mode.mpixelrepetitioninput) {
+ clkdis &= ~HDMI_MC_CLKDIS_PREPCLK_DISABLE;
+ hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
+ }
}
static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi)
else
hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
- hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0;
- hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0;
-
+ if (mode->flags & DRM_MODE_FLAG_DBLCLK) {
+ hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 1;
+ hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 1;
+ } else {
+ hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0;
+ hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0;
+ }
/* TODO: Get input format from IPU (via FB driver interface) */
- hdmi->hdmi_data.enc_in_format = RGB;
-
- hdmi->hdmi_data.enc_out_format = RGB;
-
+ if (mode->flags & DRM_MODE_FLAG_420_MASK) {
+ hdmi->hdmi_data.enc_in_format = YCBCR420;
+ hdmi->hdmi_data.enc_out_format = YCBCR420;
+ } else {
+ hdmi->hdmi_data.enc_in_format = RGB;
+ hdmi->hdmi_data.enc_out_format = RGB;
+ }
hdmi->hdmi_data.enc_color_depth = 8;
- hdmi->hdmi_data.pix_repet_factor = 0;
+ /*
+ * According to the dw-hdmi specification 6.4.2
+ * vp_pr_cd[3:0]:
+ * 0000b: No pixel repetition (pixel sent only once)
+ * 0001b: Pixel sent two times (pixel repeated once)
+ */
+ hdmi->hdmi_data.pix_repet_factor =
+ (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 1 : 0;
hdmi->hdmi_data.hdcp_enable = 0;
hdmi->hdmi_data.video_mode.mdataenablepolarity = true;
/* HDMI Initialization Step F - Configure AVI InfoFrame */
hdmi_config_AVI(hdmi, mode);
+ hdmi_config_vendor_specific_infoframe(hdmi, mode);
} else {
dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
}
struct dw_hdmi, connector);
enum drm_mode_status mode_status = MODE_OK;
- /* We don't support double-clocked modes */
- if (mode->flags & DRM_MODE_FLAG_DBLCLK)
- return MODE_BAD;
-
if (hdmi->plat_data->mode_valid)
mode_status = hdmi->plat_data->mode_valid(connector, mode);
dev_dbg(hdmi->dev, "EVENT=%s\n",
phy_int_pol & HDMI_PHY_HPD ? "plugin" : "plugout");
drm_helper_hpd_irq_event(hdmi->bridge->dev);
+#ifdef CONFIG_SWITCH
+ if (phy_int_pol & HDMI_PHY_HPD)
+ switch_set_state(&hdmi->switchdev, 1);
+ else
+ switch_set_state(&hdmi->switchdev, 0);
+#endif
}
hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
return -ENOMEM;
hdmi->connector.interlace_allowed = 1;
+ hdmi->connector.stereo_allowed = 1;
hdmi->plat_data = plat_data;
hdmi->dev = dev;
hdmi->disabled = true;
hdmi->rxsense = true;
hdmi->phy_mask = (u8)~(HDMI_PHY_HPD | HDMI_PHY_RX_SENSE);
+ hdmi->irq = irq;
mutex_init(&hdmi->mutex);
mutex_init(&hdmi->audio_mutex);
if (ret)
goto err_iahb;
+#ifdef CONFIG_SWITCH
+ hdmi->switchdev.name = "hdmi";
+ switch_dev_register(&hdmi->switchdev);
+#endif
+
hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE),
HDMI_IH_MUTE_PHY_STAT0);
/* Disable all interrupts */
hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
+#ifdef CONFIG_SWITCH
+ switch_dev_unregister(&hdmi->switchdev);
+#endif
hdmi->connector.funcs->destroy(&hdmi->connector);
hdmi->encoder->funcs->destroy(hdmi->encoder);
}
EXPORT_SYMBOL_GPL(dw_hdmi_unbind);
+static void dw_hdmi_reg_initial(struct dw_hdmi *hdmi)
+{
+ if (hdmi_readb(hdmi, HDMI_IH_MUTE)) {
+ initialize_hdmi_ih_mutes(hdmi);
+ hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL,
+ HDMI_PHY_I2CM_INT_ADDR);
+
+ hdmi_writeb(hdmi, HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL |
+ HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL,
+ HDMI_PHY_I2CM_CTLINT_ADDR);
+
+ hdmi_writeb(hdmi, HDMI_PHY_HPD | HDMI_PHY_RX_SENSE,
+ HDMI_PHY_POL0);
+ hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0);
+ hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD |
+ HDMI_IH_PHY_STAT0_RX_SENSE),
+ HDMI_IH_MUTE_PHY_STAT0);
+ }
+}
+
+void dw_hdmi_suspend(struct device *dev)
+{
+ struct dw_hdmi *hdmi = dev_get_drvdata(dev);
+
+ mutex_lock(&hdmi->mutex);
+ if (hdmi->irq)
+ disable_irq(hdmi->irq);
+ mutex_unlock(&hdmi->mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_suspend);
+
+void dw_hdmi_resume(struct device *dev)
+{
+ struct dw_hdmi *hdmi = dev_get_drvdata(dev);
+
+ mutex_lock(&hdmi->mutex);
+ dw_hdmi_reg_initial(hdmi);
+ if (hdmi->irq)
+ enable_irq(hdmi->irq);
+ mutex_unlock(&hdmi->mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_resume);
+
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
projects / firefly-linux-kernel-4.4.55.git / blobdiff