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Commit 472bb7cf authored by Jeykumar Sankaran's avatar Jeykumar Sankaran
Browse files

msm: mdss: Refactor ping pong split configurations 



Refactor ping pong split programming to make it generic enough to
support the feature on multiple targets.

Change-Id: Ic2a1cad97c354997de81f06e449ab78a1864fda2
Signed-off-by: default avatarJeykumar Sankaran <jsanka@codeaurora.org>
parent 25916999

Documentation/devicetree/bindings/fb/mdss-mdp.txt

+6 −0
Original line number Diff line number Diff line
@@ -446,6 +446,11 @@ Fudge Factors: Fudge factors are used to boost demand for 
- qcom,max-pipe-width:		This value specifies the maximum MDP SSPP width

				the device supports. If not specified, a default value

				of 2048 will be applied.

- qcom,mdss-slave-pingpong-off:	Offset address for the extra TE block which needs

				to be programmed when pingpong split feature is enabled.

				Offset is calculated from the "mdp_phys"

				register value. Mandatory when qcom,mdss-has-dst-split

				is enabled.



Optional subnodes:

Child nodes representing the frame buffer virtual devices.
@@ -620,6 +625,7 @@ Example: 
		qcom,mdss-intf-off = <0x00021100 0x00021300

					   0x00021500 0x00021700>;

		qcom,mdss-ppb-off = <0x0000420>;

		qcom,mdss-slave-pingpong-off = <0x00073000>



		/* buffer parameters to calculate prefill bandwidth */

		qcom,mdss-prefill-outstanding-buffer-bytes = <1024>;

drivers/video/msm/mdss/mdss.h

+2 −0
Original line number Diff line number Diff line
@@ -230,8 +230,10 @@ struct mdss_data_type { 
	u32 max_target_zorder;

	u8  ncursor_pipes;

	u32 max_cursor_size;



	u32 nppb;

	struct mdss_mdp_ppb *ppb;

	char __iomem *slave_pingpong_base;



	struct mdss_mdp_mixer *mixer_intf;

	struct mdss_mdp_mixer *mixer_wb;

drivers/video/msm/mdss/mdss_mdp.c

+13 −1
Original line number Diff line number Diff line
@@ -2624,7 +2624,7 @@ static void mdss_mdp_parse_vbif_qos(struct platform_device *pdev) 
static int mdss_mdp_parse_dt_misc(struct platform_device *pdev)

{

	struct mdss_data_type *mdata = platform_get_drvdata(pdev);

	u32 data;

	u32 data, slave_pingpong_off;

	const char *wfd_data;

	int rc;

	struct property *prop = NULL;
@@ -2688,6 +2688,18 @@ static int mdss_mdp_parse_dt_misc(struct platform_device *pdev) 
	mdata->has_pingpong_split = of_property_read_bool(pdev->dev.of_node,

		 "qcom,mdss-has-dst-split");



	if (mdata->has_pingpong_split) {

		rc = of_property_read_u32(pdev->dev.of_node,

				"qcom,mdss-slave-pingpong-off",

				&slave_pingpong_off);

		if (rc) {

			pr_err("Error in device tree: slave pingpong offset\n");

			return rc;

		}

		mdata->slave_pingpong_base = mdata->mdss_io.base +

			slave_pingpong_off;

	}



	/*

	 * 2x factor on AB because bus driver will divide by 2

	 * due to 2x ports to BIMC

drivers/video/msm/mdss/mdss_mdp.h

+4 −0
Original line number Diff line number Diff line
@@ -73,6 +73,9 @@ 
#define CURSOR_PIPE_LEFT 0

#define CURSOR_PIPE_RIGHT 1



#define MASTER_CTX 0

#define SLAVE_CTX 1



/*

 * Recommendation is to have different ot depending on the fps

 * and resolution, but since current SW doesn't support different
@@ -288,6 +291,7 @@ struct mdss_mdp_ctl { 
	struct blocking_notifier_head notifier_head;



	void *priv_data;

	void *intf_ctx[2];

	u32 wb_type;

	bool prg_fet;

};

drivers/video/msm/mdss/mdss_mdp_ctl.c

+6 −0
Original line number Diff line number Diff line
@@ -2269,6 +2269,12 @@ static void mdss_mdp_ctl_split_display_enable(int enable, 
				lower |= BIT(4);

			else

				lower |= BIT(8);

			/*

			 * Enable SMART_PANEL_FREE_RUN if ping pong split

			 * is enabled.

			 */

			if (is_pingpong_split(main_ctl->mfd))

				lower |= BIT(2);

			upper = lower;

		} else {

			/* interface controlling sw trigger (video mode) */