Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6dd6b97a authored by Jeevan Shriram's avatar Jeevan Shriram Committed by Narendra Muppalla
Browse files

clk: mdss: parse the dynamic refresh register base 



Add support for parsing dynamic refresh register base
for register programming.

Change-Id: I0f23f3c6c01e2ef47fec5048ae0c8ebf31566b61
Signed-off-by: default avatarJeevan Shriram <jshriram@codeaurora.org>
parent ce84375c

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

+3 −2
Original line number Diff line number Diff line
@@ -51,8 +51,9 @@ Example: 
		label = "MDSS DSI 0 PLL";

		cell-index = <0>;



		reg = <0xfd922A00 0xD4>;

		reg-names = "pll_base";

		reg = <0xfd922A00 0xD4>,

		      <0xfd922900 0x64>;

		reg-names = "pll_base", "dynamic_pll_base";

		gdsc-supply = <&gdsc_mdss>;

		vddio-supply = <&pm8941_l12>;

		vcca-supply = <&pm8941_l28>;

drivers/clk/qcom/mdss/mdss-pll.c

+16 −0
Original line number Diff line number Diff line
@@ -204,6 +204,7 @@ static int mdss_pll_probe(struct platform_device *pdev) 
	const char *label;

	struct resource *pll_base_reg;

	struct resource *phy_base_reg;

	struct resource *dynamic_pll_base_reg;

	struct mdss_pll_resources *pll_res;



	if (!pdev->dev.of_node) {
@@ -267,6 +268,18 @@ static int mdss_pll_probe(struct platform_device *pdev) 
		}

	}



	dynamic_pll_base_reg = platform_get_resource_byname(pdev,

					IORESOURCE_MEM, "dynamic_pll_base");

	if (dynamic_pll_base_reg) {

		pll_res->dyn_pll_base = ioremap(dynamic_pll_base_reg->start,

				resource_size(dynamic_pll_base_reg));

		if (!pll_res->dyn_pll_base) {

			pr_err("Unable to remap dynamic pll base resources\n");

			rc = -ENOMEM;

			goto dyn_pll_io_error;

		}

	}



	rc = mdss_pll_resource_init(pdev, pll_res);

	if (rc) {

		pr_err("Pll resource init failed rc=%d\n", rc);
@@ -284,6 +297,9 @@ static int mdss_pll_probe(struct platform_device *pdev) 
clock_register_error:

	mdss_pll_resource_deinit(pdev, pll_res);

res_init_error:

	if (pll_res->dyn_pll_base)

		iounmap(pll_res->dyn_pll_base);

dyn_pll_io_error:

	if (pll_res->phy_base)

		iounmap(pll_res->phy_base);

phy_io_error:

drivers/clk/qcom/mdss/mdss-pll.h

+5 −1
Original line number Diff line number Diff line
@@ -42,9 +42,13 @@ struct mdss_pll_resources { 
	/* Pll specific resources like GPIO, power supply, clocks, etc*/

	struct dss_module_power mp;



	/* dsi/edp/hmdi plls' base register and phy register mapping */

	/*

	 * dsi/edp/hmdi plls' base register, phy and dynamic refresh

	 * register mapping

	 */

	void __iomem	*pll_base;

	void __iomem	*phy_base;

	void __iomem	*dyn_pll_base;



	/*

	 * Certain pll's needs to update the same vco rate after resume in