Commit 063930ed authored by Manivannan Sadhasivam's avatar Manivannan Sadhasivam Committed by Stephen Boyd
Browse files

clk: qcom: Add GDSC support for SDX55 GCC 



Add GDSC support to control the power supply of power domains in SDX55
GCC.

Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20201126072844.35370-7-manivannan.sadhasivam@linaro.org


Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent bdf7805b

drivers/clk/qcom/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -424,6 +424,7 @@ config SDM_LPASSCC_845 


config SDX_GCC_55

	tristate "SDX55 Global Clock Controller"

	select QCOM_GDSC

	help

	  Support for the global clock controller on SDX55 devices.

	  Say Y if you want to use peripheral devices such as UART,

drivers/clk/qcom/gcc-sdx55.c

+33 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
#include "clk-pll.h"

#include "clk-rcg.h"

#include "clk-regmap.h"

#include "gdsc.h"

#include "reset.h"



enum {
@@ -1455,6 +1456,30 @@ static struct clk_branch gcc_xo_pcie_link_clk = { 
	},

};



static struct gdsc usb30_gdsc = {

	.gdscr = 0x0b004,

	.pd = {

		.name = "usb30_gdsc",

	},

	.pwrsts = PWRSTS_OFF_ON,

};



static struct gdsc pcie_gdsc = {

	.gdscr = 0x37004,

	.pd = {

		.name = "pcie_gdsc",

	},

	.pwrsts = PWRSTS_OFF_ON,

};



static struct gdsc emac_gdsc = {

	.gdscr = 0x47004,

	.pd = {

		.name = "emac_gdsc",

	},

	.pwrsts = PWRSTS_OFF_ON,

};



static struct clk_regmap *gcc_sdx55_clocks[] = {

	[GCC_AHB_PCIE_LINK_CLK] = &gcc_ahb_pcie_link_clk.clkr,

	[GCC_BLSP1_AHB_CLK] = &gcc_blsp1_ahb_clk.clkr,
@@ -1560,6 +1585,12 @@ static const struct qcom_reset_map gcc_sdx55_resets[] = { 
	[GCC_USB_PHY_CFG_AHB2PHY_BCR] = { 0xe000 },

};



static struct gdsc *gcc_sdx55_gdscs[] = {

	[USB30_GDSC] = &usb30_gdsc,

	[PCIE_GDSC] = &pcie_gdsc,

	[EMAC_GDSC] = &emac_gdsc,

};



static const struct regmap_config gcc_sdx55_regmap_config = {

	.reg_bits	= 32,

	.reg_stride	= 4,
@@ -1574,6 +1605,8 @@ static const struct qcom_cc_desc gcc_sdx55_desc = { 
	.num_clks = ARRAY_SIZE(gcc_sdx55_clocks),

	.resets = gcc_sdx55_resets,

	.num_resets = ARRAY_SIZE(gcc_sdx55_resets),

	.gdscs = gcc_sdx55_gdscs,

	.num_gdscs = ARRAY_SIZE(gcc_sdx55_gdscs),

};



static const struct of_device_id gcc_sdx55_match_table[] = {