v4l: xilinx: dprx: Reset the retimer dp data path

This patch will reset the retimer DP data path when there
is a cable disconnection event occurs. This change is added
as affter review with bare-metal driver.

Signed-off-by: Rajesh Gugulothu <gugulothu.rajesh@xilinx.com>

drivers/media/platform/xilinx/xilinx-dprxss.c

@@ -236,10 +236,12 @@ struct xlnx_dprx_audio_data {
  * struct retimer_cfg - Retimer configuration structure
  * @retimer_access_laneset: Function pointer to retimer access laneset function
  * @retimer_rst_cr_path: Function pointer to retimer reset cr path function
+ * @retimer_rst_dp_path: Function pointer to retimer reset dp path function
  */
 struct retimer_cfg {
 	void (*retimer_access_laneset)(void);
 	void (*retimer_rst_cr_path)(void);
+	void (*retimer_rst_dp_path)(void);
 };
 
 /**
@@ -828,6 +830,9 @@ static void xdprxss_irq_unplug(struct xdprxss_state *state)
 	xdprxss_set(state, XDPRX_SOFT_RST_REG, XDPRX_SOFT_VIDRST_MASK);
 	xdprxss_clr(state, XDPRX_SOFT_RST_REG, XDPRX_SOFT_VIDRST_MASK);
 
+	if (state->retimer_prvdata)
+		state->retimer_prvdata->retimer_rst_dp_path();
+
 	xdprxss_set(state, XDPRX_INTR_MASK_REG, XDPRX_INTR_ALL_MASK);
 	xdprxss_clr(state, XDPRX_INTR_MASK_REG, XDPRX_INTR_TRNG_MASK);
 	/*