clk: qcom: gcc: Add support for Global Clock controller found on MSM8940

Modify existing MSM8917 driver to support MSM8940 SoC. MSM8940 SoC has the
same changes as MSM8937 SoC, but with additional IPA clk and different
GFX3D clock frequency table.

Signed-off-by: Daniil Titov <daniilt971@gmail.com>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251117-gcc-msm8940-sdm439-v2-2-4af57c8bc7eb@mainlining.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

2 files changed, 234 insertions, 3 deletions

diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig
index 960ef7b4890e..fdc8e07abbcc 100644
--- a/drivers/clk/qcom/Kconfig
+++ b/drivers/clk/qcom/Kconfig
@@ -387,12 +387,12 @@ config MSM_GCC_8916
 	  SD/eMMC, display, graphics, camera etc.
 
 config MSM_GCC_8917
-	tristate "MSM89(17/37)/QM215 Global Clock Controller"
+	tristate "MSM89(17/37/40)/QM215 Global Clock Controller"
 	depends on ARM64 || COMPILE_TEST
 	select QCOM_GDSC
 	help
-	  Support for the global clock controller on msm8917, msm8937
-	  and qm215 devices.
+	  Support for the global clock controller on msm8917, msm8937,
+	  msm8940 and qm215 devices.
 	  Say Y if you want to use devices such as UART, SPI i2c, USB,
 	  SD/eMMC, display, graphics, camera etc.
 
diff --git a/drivers/clk/qcom/gcc-msm8917.c b/drivers/clk/qcom/gcc-msm8917.c
index 248fa0fd86f5..5d0512a1e6d7 100644
--- a/drivers/clk/qcom/gcc-msm8917.c
+++ b/drivers/clk/qcom/gcc-msm8917.c
@@ -957,6 +957,27 @@ static const struct freq_tbl ftbl_gfx3d_clk_src_msm8937[] = {
 	{ }
 };
 
+static const struct freq_tbl ftbl_gfx3d_clk_src_msm8940[] = {
+	F(19200000, P_XO, 1, 0, 0),
+	F(50000000, P_GPLL0, 16, 0, 0),
+	F(80000000, P_GPLL0, 10, 0, 0),
+	F(100000000, P_GPLL0, 8, 0, 0),
+	F(160000000, P_GPLL0, 5, 0, 0),
+	F(200000000, P_GPLL0, 4, 0, 0),
+	F(216000000, P_GPLL6, 5, 0, 0),
+	F(228570000, P_GPLL0, 3.5, 0, 0),
+	F(240000000, P_GPLL6, 4.5, 0, 0),
+	F(266670000, P_GPLL0, 3, 0, 0),
+	F(300000000, P_GPLL3, 1, 0, 0),
+	F(320000000, P_GPLL0, 2.5, 0, 0),
+	F(375000000, P_GPLL3, 1, 0, 0),
+	F(400000000, P_GPLL0, 2, 0, 0),
+	F(450000000, P_GPLL3, 1, 0, 0),
+	F(475000000, P_GPLL3, 1, 0, 0),
+	F(500000000, P_GPLL3, 1, 0, 0),
+	{ }
+};
+
 static struct clk_rcg2 gfx3d_clk_src = {
 	.cmd_rcgr = 0x59000,
 	.hid_width = 5,
@@ -3307,6 +3328,19 @@ static struct clk_branch gcc_vfe_tbu_clk = {
 	}
 };
 
+static struct clk_branch gcc_ipa_tbu_clk = {
+	.halt_reg = 0x120a0,
+	.halt_check = BRANCH_VOTED,
+	.clkr = {
+		.enable_reg = 0x4500c,
+		.enable_mask = BIT(16),
+		.hw.init = &(struct clk_init_data){
+			.name = "gcc_ipa_tbu_clk",
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
 static struct gdsc venus_gdsc = {
 	.gdscr = 0x4c018,
 	.cxcs = (unsigned int []){ 0x4c024, 0x4c01c },
@@ -3764,6 +3798,189 @@ static struct clk_regmap *gcc_msm8937_clocks[] = {
 	[GCC_VFE_TBU_CLK] = &gcc_vfe_tbu_clk.clkr,
 };
 
+static struct clk_regmap *gcc_msm8940_clocks[] = {
+	[GPLL0] = &gpll0.clkr,
+	[GPLL0_EARLY] = &gpll0_early.clkr,
+	[GPLL0_SLEEP_CLK_SRC] = &gpll0_sleep_clk_src.clkr,
+	[GPLL3] = &gpll3.clkr,
+	[GPLL3_EARLY] = &gpll3_early.clkr,
+	[GPLL4] = &gpll4.clkr,
+	[GPLL4_EARLY] = &gpll4_early.clkr,
+	[GPLL6] = &gpll6,
+	[GPLL6_EARLY] = &gpll6_early.clkr,
+	[APSS_AHB_CLK_SRC] = &apss_ahb_clk_src.clkr,
+	[MSM8937_BLSP1_QUP1_I2C_APPS_CLK_SRC] = &blsp1_qup1_i2c_apps_clk_src.clkr,
+	[MSM8937_BLSP1_QUP1_SPI_APPS_CLK_SRC] = &blsp1_qup1_spi_apps_clk_src.clkr,
+	[BLSP1_QUP2_I2C_APPS_CLK_SRC] = &blsp1_qup2_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP2_SPI_APPS_CLK_SRC] = &blsp1_qup2_spi_apps_clk_src.clkr,
+	[BLSP1_QUP3_I2C_APPS_CLK_SRC] = &blsp1_qup3_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP3_SPI_APPS_CLK_SRC] = &blsp1_qup3_spi_apps_clk_src.clkr,
+	[BLSP1_QUP4_I2C_APPS_CLK_SRC] = &blsp1_qup4_i2c_apps_clk_src.clkr,
+	[BLSP1_QUP4_SPI_APPS_CLK_SRC] = &blsp1_qup4_spi_apps_clk_src.clkr,
+	[BLSP1_UART1_APPS_CLK_SRC] = &blsp1_uart1_apps_clk_src.clkr,
+	[BLSP1_UART2_APPS_CLK_SRC] = &blsp1_uart2_apps_clk_src.clkr,
+	[BLSP2_QUP1_I2C_APPS_CLK_SRC] = &blsp2_qup1_i2c_apps_clk_src.clkr,
+	[BLSP2_QUP1_SPI_APPS_CLK_SRC] = &blsp2_qup1_spi_apps_clk_src.clkr,
+	[BLSP2_QUP2_I2C_APPS_CLK_SRC] = &blsp2_qup2_i2c_apps_clk_src.clkr,
+	[BLSP2_QUP2_SPI_APPS_CLK_SRC] = &blsp2_qup2_spi_apps_clk_src.clkr,
+	[BLSP2_QUP3_I2C_APPS_CLK_SRC] = &blsp2_qup3_i2c_apps_clk_src.clkr,
+	[BLSP2_QUP3_SPI_APPS_CLK_SRC] = &blsp2_qup3_spi_apps_clk_src.clkr,
+	[MSM8937_BLSP2_QUP4_I2C_APPS_CLK_SRC] = &blsp2_qup4_i2c_apps_clk_src.clkr,
+	[MSM8937_BLSP2_QUP4_SPI_APPS_CLK_SRC] = &blsp2_qup4_spi_apps_clk_src.clkr,
+	[BLSP2_UART1_APPS_CLK_SRC] = &blsp2_uart1_apps_clk_src.clkr,
+	[BLSP2_UART2_APPS_CLK_SRC] = &blsp2_uart2_apps_clk_src.clkr,
+	[BYTE0_CLK_SRC] = &byte0_clk_src.clkr,
+	[MSM8937_BYTE1_CLK_SRC] = &byte1_clk_src.clkr,
+	[CAMSS_GP0_CLK_SRC] = &camss_gp0_clk_src.clkr,
+	[CAMSS_GP1_CLK_SRC] = &camss_gp1_clk_src.clkr,
+	[CAMSS_TOP_AHB_CLK_SRC] = &camss_top_ahb_clk_src.clkr,
+	[CCI_CLK_SRC] = &cci_clk_src.clkr,
+	[CPP_CLK_SRC] = &cpp_clk_src.clkr,
+	[CRYPTO_CLK_SRC] = &crypto_clk_src.clkr,
+	[CSI0PHYTIMER_CLK_SRC] = &csi0phytimer_clk_src.clkr,
+	[CSI0_CLK_SRC] = &csi0_clk_src.clkr,
+	[CSI1PHYTIMER_CLK_SRC] = &csi1phytimer_clk_src.clkr,
+	[CSI1_CLK_SRC] = &csi1_clk_src.clkr,
+	[CSI2_CLK_SRC] = &csi2_clk_src.clkr,
+	[ESC0_CLK_SRC] = &esc0_clk_src.clkr,
+	[MSM8937_ESC1_CLK_SRC] = &esc1_clk_src.clkr,
+	[GFX3D_CLK_SRC] = &gfx3d_clk_src.clkr,
+	[GP1_CLK_SRC] = &gp1_clk_src.clkr,
+	[GP2_CLK_SRC] = &gp2_clk_src.clkr,
+	[GP3_CLK_SRC] = &gp3_clk_src.clkr,
+	[JPEG0_CLK_SRC] = &jpeg0_clk_src.clkr,
+	[MCLK0_CLK_SRC] = &mclk0_clk_src.clkr,
+	[MCLK1_CLK_SRC] = &mclk1_clk_src.clkr,
+	[MCLK2_CLK_SRC] = &mclk2_clk_src.clkr,
+	[MDP_CLK_SRC] = &mdp_clk_src.clkr,
+	[PCLK0_CLK_SRC] = &pclk0_clk_src.clkr,
+	[MSM8937_PCLK1_CLK_SRC] = &pclk1_clk_src.clkr,
+	[PDM2_CLK_SRC] = &pdm2_clk_src.clkr,
+	[SDCC1_APPS_CLK_SRC] = &sdcc1_apps_clk_src.clkr,
+	[SDCC1_ICE_CORE_CLK_SRC] = &sdcc1_ice_core_clk_src.clkr,
+	[SDCC2_APPS_CLK_SRC] = &sdcc2_apps_clk_src.clkr,
+	[USB_HS_SYSTEM_CLK_SRC] = &usb_hs_system_clk_src.clkr,
+	[VCODEC0_CLK_SRC] = &vcodec0_clk_src.clkr,
+	[VFE0_CLK_SRC] = &vfe0_clk_src.clkr,
+	[VFE1_CLK_SRC] = &vfe1_clk_src.clkr,
+	[VSYNC_CLK_SRC] = &vsync_clk_src.clkr,
+	[GCC_APSS_TCU_CLK] = &gcc_apss_tcu_clk.clkr,
+	[GCC_BIMC_GFX_CLK] = &gcc_bimc_gfx_clk.clkr,
+	[GCC_BIMC_GPU_CLK] = &gcc_bimc_gpu_clk.clkr,
+	[GCC_BLSP1_AHB_CLK] = &gcc_blsp1_ahb_clk.clkr,
+	[MSM8937_GCC_BLSP1_QUP1_I2C_APPS_CLK] = &gcc_blsp1_qup1_i2c_apps_clk.clkr,
+	[MSM8937_GCC_BLSP1_QUP1_SPI_APPS_CLK] = &gcc_blsp1_qup1_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP2_I2C_APPS_CLK] = &gcc_blsp1_qup2_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP2_SPI_APPS_CLK] = &gcc_blsp1_qup2_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP3_I2C_APPS_CLK] = &gcc_blsp1_qup3_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP3_SPI_APPS_CLK] = &gcc_blsp1_qup3_spi_apps_clk.clkr,
+	[GCC_BLSP1_QUP4_I2C_APPS_CLK] = &gcc_blsp1_qup4_i2c_apps_clk.clkr,
+	[GCC_BLSP1_QUP4_SPI_APPS_CLK] = &gcc_blsp1_qup4_spi_apps_clk.clkr,
+	[GCC_BLSP1_UART1_APPS_CLK] = &gcc_blsp1_uart1_apps_clk.clkr,
+	[GCC_BLSP1_UART2_APPS_CLK] = &gcc_blsp1_uart2_apps_clk.clkr,
+	[GCC_BLSP2_AHB_CLK] = &gcc_blsp2_ahb_clk.clkr,
+	[GCC_BLSP2_QUP1_I2C_APPS_CLK] = &gcc_blsp2_qup1_i2c_apps_clk.clkr,
+	[GCC_BLSP2_QUP1_SPI_APPS_CLK] = &gcc_blsp2_qup1_spi_apps_clk.clkr,
+	[GCC_BLSP2_QUP2_I2C_APPS_CLK] = &gcc_blsp2_qup2_i2c_apps_clk.clkr,
+	[GCC_BLSP2_QUP2_SPI_APPS_CLK] = &gcc_blsp2_qup2_spi_apps_clk.clkr,
+	[GCC_BLSP2_QUP3_I2C_APPS_CLK] = &gcc_blsp2_qup3_i2c_apps_clk.clkr,
+	[GCC_BLSP2_QUP3_SPI_APPS_CLK] = &gcc_blsp2_qup3_spi_apps_clk.clkr,
+	[MSM8937_GCC_BLSP2_QUP4_I2C_APPS_CLK] = &gcc_blsp2_qup4_i2c_apps_clk.clkr,
+	[MSM8937_GCC_BLSP2_QUP4_SPI_APPS_CLK] = &gcc_blsp2_qup4_spi_apps_clk.clkr,
+	[GCC_BLSP2_UART1_APPS_CLK] = &gcc_blsp2_uart1_apps_clk.clkr,
+	[GCC_BLSP2_UART2_APPS_CLK] = &gcc_blsp2_uart2_apps_clk.clkr,
+	[GCC_BOOT_ROM_AHB_CLK] = &gcc_boot_rom_ahb_clk.clkr,
+	[GCC_CAMSS_AHB_CLK] = &gcc_camss_ahb_clk.clkr,
+	[GCC_CAMSS_CCI_AHB_CLK] = &gcc_camss_cci_ahb_clk.clkr,
+	[GCC_CAMSS_CCI_CLK] = &gcc_camss_cci_clk.clkr,
+	[GCC_CAMSS_CPP_AHB_CLK] = &gcc_camss_cpp_ahb_clk.clkr,
+	[GCC_CAMSS_CPP_CLK] = &gcc_camss_cpp_clk.clkr,
+	[GCC_CAMSS_CSI0PHYTIMER_CLK] = &gcc_camss_csi0phytimer_clk.clkr,
+	[GCC_CAMSS_CSI0PHY_CLK] = &gcc_camss_csi0phy_clk.clkr,
+	[GCC_CAMSS_CSI0PIX_CLK] = &gcc_camss_csi0pix_clk.clkr,
+	[GCC_CAMSS_CSI0RDI_CLK] = &gcc_camss_csi0rdi_clk.clkr,
+	[GCC_CAMSS_CSI0_AHB_CLK] = &gcc_camss_csi0_ahb_clk.clkr,
+	[GCC_CAMSS_CSI0_CLK] = &gcc_camss_csi0_clk.clkr,
+	[GCC_CAMSS_CSI1PHYTIMER_CLK] = &gcc_camss_csi1phytimer_clk.clkr,
+	[GCC_CAMSS_CSI1PHY_CLK] = &gcc_camss_csi1phy_clk.clkr,
+	[GCC_CAMSS_CSI1PIX_CLK] = &gcc_camss_csi1pix_clk.clkr,
+	[GCC_CAMSS_CSI1RDI_CLK] = &gcc_camss_csi1rdi_clk.clkr,
+	[GCC_CAMSS_CSI1_AHB_CLK] = &gcc_camss_csi1_ahb_clk.clkr,
+	[GCC_CAMSS_CSI1_CLK] = &gcc_camss_csi1_clk.clkr,
+	[GCC_CAMSS_CSI2PHY_CLK] = &gcc_camss_csi2phy_clk.clkr,
+	[GCC_CAMSS_CSI2PIX_CLK] = &gcc_camss_csi2pix_clk.clkr,
+	[GCC_CAMSS_CSI2RDI_CLK] = &gcc_camss_csi2rdi_clk.clkr,
+	[GCC_CAMSS_CSI2_AHB_CLK] = &gcc_camss_csi2_ahb_clk.clkr,
+	[GCC_CAMSS_CSI2_CLK] = &gcc_camss_csi2_clk.clkr,
+	[GCC_CAMSS_CSI_VFE0_CLK] = &gcc_camss_csi_vfe0_clk.clkr,
+	[GCC_CAMSS_CSI_VFE1_CLK] = &gcc_camss_csi_vfe1_clk.clkr,
+	[GCC_CAMSS_GP0_CLK] = &gcc_camss_gp0_clk.clkr,
+	[GCC_CAMSS_GP1_CLK] = &gcc_camss_gp1_clk.clkr,
+	[GCC_CAMSS_ISPIF_AHB_CLK] = &gcc_camss_ispif_ahb_clk.clkr,
+	[GCC_CAMSS_JPEG0_CLK] = &gcc_camss_jpeg0_clk.clkr,
+	[GCC_CAMSS_JPEG_AHB_CLK] = &gcc_camss_jpeg_ahb_clk.clkr,
+	[GCC_CAMSS_JPEG_AXI_CLK] = &gcc_camss_jpeg_axi_clk.clkr,
+	[GCC_CAMSS_MCLK0_CLK] = &gcc_camss_mclk0_clk.clkr,
+	[GCC_CAMSS_MCLK1_CLK] = &gcc_camss_mclk1_clk.clkr,
+	[GCC_CAMSS_MCLK2_CLK] = &gcc_camss_mclk2_clk.clkr,
+	[GCC_CAMSS_MICRO_AHB_CLK] = &gcc_camss_micro_ahb_clk.clkr,
+	[GCC_CAMSS_TOP_AHB_CLK] = &gcc_camss_top_ahb_clk.clkr,
+	[GCC_CAMSS_VFE0_AHB_CLK] = &gcc_camss_vfe0_ahb_clk.clkr,
+	[GCC_CAMSS_VFE0_AXI_CLK] = &gcc_camss_vfe0_axi_clk.clkr,
+	[GCC_CAMSS_VFE0_CLK] = &gcc_camss_vfe0_clk.clkr,
+	[GCC_CAMSS_VFE1_AHB_CLK] = &gcc_camss_vfe1_ahb_clk.clkr,
+	[GCC_CAMSS_VFE1_AXI_CLK] = &gcc_camss_vfe1_axi_clk.clkr,
+	[GCC_CAMSS_VFE1_CLK] = &gcc_camss_vfe1_clk.clkr,
+	[GCC_CPP_TBU_CLK] = &gcc_cpp_tbu_clk.clkr,
+	[GCC_CRYPTO_AHB_CLK] = &gcc_crypto_ahb_clk.clkr,
+	[GCC_CRYPTO_AXI_CLK] = &gcc_crypto_axi_clk.clkr,
+	[GCC_CRYPTO_CLK] = &gcc_crypto_clk.clkr,
+	[GCC_DCC_CLK] = &gcc_dcc_clk.clkr,
+	[GCC_GP1_CLK] = &gcc_gp1_clk.clkr,
+	[GCC_GP2_CLK] = &gcc_gp2_clk.clkr,
+	[GCC_GP3_CLK] = &gcc_gp3_clk.clkr,
+	[GCC_JPEG_TBU_CLK] = &gcc_jpeg_tbu_clk.clkr,
+	[GCC_MDP_TBU_CLK] = &gcc_mdp_tbu_clk.clkr,
+	[GCC_MDSS_AHB_CLK] = &gcc_mdss_ahb_clk.clkr,
+	[GCC_MDSS_AXI_CLK] = &gcc_mdss_axi_clk.clkr,
+	[GCC_MDSS_BYTE0_CLK] = &gcc_mdss_byte0_clk.clkr,
+	[MSM8937_GCC_MDSS_BYTE1_CLK] = &gcc_mdss_byte1_clk.clkr,
+	[GCC_MDSS_ESC0_CLK] = &gcc_mdss_esc0_clk.clkr,
+	[MSM8937_GCC_MDSS_ESC1_CLK] = &gcc_mdss_esc1_clk.clkr,
+	[GCC_MDSS_MDP_CLK] = &gcc_mdss_mdp_clk.clkr,
+	[GCC_MDSS_PCLK0_CLK] = &gcc_mdss_pclk0_clk.clkr,
+	[MSM8937_GCC_MDSS_PCLK1_CLK] = &gcc_mdss_pclk1_clk.clkr,
+	[GCC_MDSS_VSYNC_CLK] = &gcc_mdss_vsync_clk.clkr,
+	[GCC_MSS_CFG_AHB_CLK] = &gcc_mss_cfg_ahb_clk.clkr,
+	[GCC_MSS_Q6_BIMC_AXI_CLK] = &gcc_mss_q6_bimc_axi_clk.clkr,
+	[GCC_OXILI_AHB_CLK] = &gcc_oxili_ahb_clk.clkr,
+	[MSM8937_GCC_OXILI_AON_CLK] = &gcc_oxili_aon_clk.clkr,
+	[GCC_OXILI_GFX3D_CLK] = &gcc_oxili_gfx3d_clk.clkr,
+	[MSM8937_GCC_OXILI_TIMER_CLK] = &gcc_oxili_timer_clk.clkr,
+	[GCC_PDM2_CLK] = &gcc_pdm2_clk.clkr,
+	[GCC_PDM_AHB_CLK] = &gcc_pdm_ahb_clk.clkr,
+	[GCC_PRNG_AHB_CLK] = &gcc_prng_ahb_clk.clkr,
+	[GCC_QDSS_DAP_CLK] = &gcc_qdss_dap_clk.clkr,
+	[GCC_SDCC1_AHB_CLK] = &gcc_sdcc1_ahb_clk.clkr,
+	[GCC_SDCC1_APPS_CLK] = &gcc_sdcc1_apps_clk.clkr,
+	[GCC_SDCC1_ICE_CORE_CLK] = &gcc_sdcc1_ice_core_clk.clkr,
+	[GCC_SDCC2_AHB_CLK] = &gcc_sdcc2_ahb_clk.clkr,
+	[GCC_SDCC2_APPS_CLK] = &gcc_sdcc2_apps_clk.clkr,
+	[GCC_SMMU_CFG_CLK] = &gcc_smmu_cfg_clk.clkr,
+	[GCC_USB2A_PHY_SLEEP_CLK] = &gcc_usb2a_phy_sleep_clk.clkr,
+	[GCC_USB_HS_AHB_CLK] = &gcc_usb_hs_ahb_clk.clkr,
+	[GCC_USB_HS_PHY_CFG_AHB_CLK] = &gcc_usb_hs_phy_cfg_ahb_clk.clkr,
+	[GCC_USB_HS_SYSTEM_CLK] = &gcc_usb_hs_system_clk.clkr,
+	[GCC_VENUS0_AHB_CLK] = &gcc_venus0_ahb_clk.clkr,
+	[GCC_VENUS0_AXI_CLK] = &gcc_venus0_axi_clk.clkr,
+	[GCC_VENUS0_CORE0_VCODEC0_CLK] = &gcc_venus0_core0_vcodec0_clk.clkr,
+	[GCC_VENUS0_VCODEC0_CLK] = &gcc_venus0_vcodec0_clk.clkr,
+	[GCC_VENUS_TBU_CLK] = &gcc_venus_tbu_clk.clkr,
+	[GCC_VFE1_TBU_CLK] = &gcc_vfe1_tbu_clk.clkr,
+	[GCC_VFE_TBU_CLK] = &gcc_vfe_tbu_clk.clkr,
+	[MSM8940_GCC_IPA_TBU_CLK] = &gcc_ipa_tbu_clk.clkr,
+};
+
 static const struct qcom_reset_map gcc_msm8917_resets[] = {
 	[GCC_CAMSS_MICRO_BCR]		= { 0x56008 },
 	[GCC_MSS_BCR]			= { 0x71000 },
@@ -3834,6 +4051,16 @@ static const struct qcom_cc_desc gcc_msm8937_desc = {
 	.num_gdscs = ARRAY_SIZE(gcc_msm8937_gdscs),
 };
 
+static const struct qcom_cc_desc gcc_msm8940_desc = {
+	.config = &gcc_msm8917_regmap_config,
+	.clks = gcc_msm8940_clocks,
+	.num_clks = ARRAY_SIZE(gcc_msm8940_clocks),
+	.resets = gcc_msm8917_resets,
+	.num_resets = ARRAY_SIZE(gcc_msm8917_resets),
+	.gdscs = gcc_msm8937_gdscs,
+	.num_gdscs = ARRAY_SIZE(gcc_msm8937_gdscs),
+};
+
 static void msm8937_clock_override(void)
 {
 	/* GPLL3 750MHz configuration */
@@ -3871,6 +4098,9 @@ static int gcc_msm8917_probe(struct platform_device *pdev)
 	} else if (gcc_desc == &gcc_msm8937_desc) {
 		msm8937_clock_override();
 		gfx3d_clk_src.freq_tbl = ftbl_gfx3d_clk_src_msm8937;
+	} else if (gcc_desc == &gcc_msm8940_desc) {
+		msm8937_clock_override();
+		gfx3d_clk_src.freq_tbl = ftbl_gfx3d_clk_src_msm8940;
 	}
 
 	regmap = qcom_cc_map(pdev, gcc_desc);
@@ -3886,6 +4116,7 @@ static const struct of_device_id gcc_msm8917_match_table[] = {
 	{ .compatible = "qcom,gcc-msm8917", .data = &gcc_msm8917_desc },
 	{ .compatible = "qcom,gcc-qm215", .data = &gcc_qm215_desc },
 	{ .compatible = "qcom,gcc-msm8937", .data = &gcc_msm8937_desc },
+	{ .compatible = "qcom,gcc-msm8940", .data = &gcc_msm8940_desc },
 	{},
 };
 MODULE_DEVICE_TABLE(of, gcc_msm8917_match_table);