Merge "drm/msm : add utility function to dump HDMI registers" (ea8783eb) · Commits · e / devices / android_kernel_sony_msm8998

drivers/gpu/drm/msm/hdmi-staging/sde_hdmi_util.c

+53 −0

Original line number	Diff line number	Diff line
		@@ -68,6 +68,59 @@ static void sde_hdmi_hdcp2p2_ddc_clear_status(struct sde_hdmi *display)
		hdmi_write(hdmi, HDMI_HDCP2P2_DDC_STATUS, reg_val);
		}

		/**
		* sde_hdmi_dump_regs - utility to dump HDMI regs
		* @hdmi_display: Pointer to private display handle
		* Return : void
		*/

		void sde_hdmi_dump_regs(void *hdmi_display)
		{
		struct sde_hdmi display = (struct sde_hdmi )hdmi_display;
		struct hdmi *hdmi;
		int i;
		u32 addr_off = 0;
		u32 len = 0;

		if (!display) {
		pr_err("invalid input\n");
		return;
		}

		hdmi = display->ctrl.ctrl;

		if (!hdmi) {
		pr_err("invalid input\n");
		return;
		}

		if (!hdmi->power_on \|\| !display->connected) {
		SDE_ERROR("HDMI display is not ready\n");
		return;
		}

		len = hdmi->mmio_len;

		if (len % 16)
		len += 16;
		len /= 16;

		pr_info("HDMI CORE regs\n");
		for (i = 0; i < len; i++) {
		u32 x0, x4, x8, xc;

		x0 = hdmi_read(hdmi, addr_off+0x0);
		x4 = hdmi_read(hdmi, addr_off+0x4);
		x8 = hdmi_read(hdmi, addr_off+0x8);
		xc = hdmi_read(hdmi, addr_off+0xc);

		pr_info("%08x : %08x %08x %08x %08x\n", addr_off, x0, x4, x8,
		xc);

		addr_off += 16;
		}
		}

		int sde_hdmi_ddc_hdcp2p2_isr(void *hdmi_display)
		{
		struct sde_hdmi_tx_hdcp2p2_ddc_data *data;

+1 −1

Original line number	Diff line number	Diff line
		@@ -160,5 +160,5 @@ void sde_hdmi_hdcp2p2_ddc_disable(void *hdmi_display);
		int sde_hdmi_hdcp2p2_read_rxstatus(void *hdmi_display);
		void sde_hdmi_ddc_config(void *hdmi_display);
		int sde_hdmi_ddc_hdcp2p2_isr(void *hdmi_display);

		void sde_hdmi_dump_regs(void *hdmi_display);
		#endif /* _SDE_HDMI_UTIL_H_ */