diff options
author | Stephen Boyd <sboyd@codeaurora.org> | 2014-07-15 14:52:22 -0700 |
---|---|---|
committer | Stephen Boyd <sboyd@codeaurora.org> | 2014-07-15 16:39:03 -0700 |
commit | e216ce60a9e05ab399d098f05cd86fd95c9da8d5 (patch) | |
tree | e4011df8185206e60764bb528e3be601c15a5668 /drivers/clk | |
parent | d8c25d3a1a1d61cf433654f3632a03ddaee4f781 (diff) | |
download | linux-e216ce60a9e05ab399d098f05cd86fd95c9da8d5.tar.bz2 |
clk: qcom: Add support for APQ8064 multimedia clocks
The APQ8064 multimedia clock controller is fairly similar to the
8960 multimedia clock controller, except that gfx2d0/1 has been
removed and the gfx3d frequency is slightly faster when using the
newly introduced PLL15. We also add vcap clocks and a couple new
TV clocks.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/qcom/mmcc-msm8960.c | 433 |
1 files changed, 431 insertions, 2 deletions
diff --git a/drivers/clk/qcom/mmcc-msm8960.c b/drivers/clk/qcom/mmcc-msm8960.c index 7985982ab4e9..255f127e8f3b 100644 --- a/drivers/clk/qcom/mmcc-msm8960.c +++ b/drivers/clk/qcom/mmcc-msm8960.c @@ -37,6 +37,7 @@ #define P_PLL8 1 #define P_PLL2 2 #define P_PLL3 3 +#define P_PLL15 3 #define F_MN(f, s, _m, _n) { .freq = f, .src = s, .m = _m, .n = _n } @@ -59,6 +60,20 @@ static u8 mmcc_pxo_pll8_pll2_pll3_map[] = { [P_PLL3] = 3, }; +static const char *mmcc_pxo_pll8_pll2_pll15[] = { + "pxo", + "pll8_vote", + "pll2", + "pll15", +}; + +static u8 mmcc_pxo_pll8_pll2_pll15_map[] = { + [P_PXO] = 0, + [P_PLL8] = 2, + [P_PLL2] = 1, + [P_PLL15] = 3, +}; + static const char *mmcc_pxo_pll8_pll2_pll3[] = { "pxo", "pll8_vote", @@ -82,6 +97,36 @@ static struct clk_pll pll2 = { }, }; +static struct clk_pll pll15 = { + .l_reg = 0x33c, + .m_reg = 0x340, + .n_reg = 0x344, + .config_reg = 0x348, + .mode_reg = 0x338, + .status_reg = 0x350, + .status_bit = 16, + .clkr.hw.init = &(struct clk_init_data){ + .name = "pll15", + .parent_names = (const char *[]){ "pxo" }, + .num_parents = 1, + .ops = &clk_pll_ops, + }, +}; + +static const struct pll_config pll15_config = { + .l = 33, + .m = 1, + .n = 3, + .vco_val = 0x2 << 16, + .vco_mask = 0x3 << 16, + .pre_div_val = 0x0, + .pre_div_mask = BIT(19), + .post_div_val = 0x0, + .post_div_mask = 0x3 << 20, + .mn_ena_mask = BIT(22), + .main_output_mask = BIT(23), +}; + static struct freq_tbl clk_tbl_cam[] = { { 6000000, P_PLL8, 4, 1, 16 }, { 8000000, P_PLL8, 4, 1, 12 }, @@ -863,6 +908,27 @@ static struct freq_tbl clk_tbl_gfx3d[] = { { } }; +static struct freq_tbl clk_tbl_gfx3d_8064[] = { + F_MN( 27000000, P_PXO, 0, 0), + F_MN( 48000000, P_PLL8, 1, 8), + F_MN( 54857000, P_PLL8, 1, 7), + F_MN( 64000000, P_PLL8, 1, 6), + F_MN( 76800000, P_PLL8, 1, 5), + F_MN( 96000000, P_PLL8, 1, 4), + F_MN(128000000, P_PLL8, 1, 3), + F_MN(145455000, P_PLL2, 2, 11), + F_MN(160000000, P_PLL2, 1, 5), + F_MN(177778000, P_PLL2, 2, 9), + F_MN(192000000, P_PLL8, 1, 2), + F_MN(200000000, P_PLL2, 1, 4), + F_MN(228571000, P_PLL2, 2, 7), + F_MN(266667000, P_PLL2, 1, 3), + F_MN(320000000, P_PLL2, 2, 5), + F_MN(400000000, P_PLL2, 1, 2), + F_MN(450000000, P_PLL15, 1, 2), + { } +}; + static struct clk_dyn_rcg gfx3d_src = { .ns_reg = 0x008c, .md_reg[0] = 0x0084, @@ -905,6 +971,13 @@ static struct clk_dyn_rcg gfx3d_src = { }, }; +static const struct clk_init_data gfx3d_8064_init = { + .name = "gfx3d_src", + .parent_names = mmcc_pxo_pll8_pll2_pll15, + .num_parents = 4, + .ops = &clk_dyn_rcg_ops, +}; + static struct clk_branch gfx3d_clk = { .halt_reg = 0x01c8, .halt_bit = 4, @@ -921,6 +994,91 @@ static struct clk_branch gfx3d_clk = { }, }; +static struct freq_tbl clk_tbl_vcap[] = { + F_MN( 27000000, P_PXO, 0, 0), + F_MN( 54860000, P_PLL8, 1, 7), + F_MN( 64000000, P_PLL8, 1, 6), + F_MN( 76800000, P_PLL8, 1, 5), + F_MN(128000000, P_PLL8, 1, 3), + F_MN(160000000, P_PLL2, 1, 5), + F_MN(200000000, P_PLL2, 1, 4), + { } +}; + +static struct clk_dyn_rcg vcap_src = { + .ns_reg = 0x021c, + .md_reg[0] = 0x01ec, + .md_reg[1] = 0x0218, + .mn[0] = { + .mnctr_en_bit = 8, + .mnctr_reset_bit = 23, + .mnctr_mode_shift = 9, + .n_val_shift = 18, + .m_val_shift = 4, + .width = 4, + }, + .mn[1] = { + .mnctr_en_bit = 5, + .mnctr_reset_bit = 22, + .mnctr_mode_shift = 6, + .n_val_shift = 14, + .m_val_shift = 4, + .width = 4, + }, + .s[0] = { + .src_sel_shift = 3, + .parent_map = mmcc_pxo_pll8_pll2_map, + }, + .s[1] = { + .src_sel_shift = 0, + .parent_map = mmcc_pxo_pll8_pll2_map, + }, + .mux_sel_bit = 11, + .freq_tbl = clk_tbl_vcap, + .clkr = { + .enable_reg = 0x0178, + .enable_mask = BIT(2), + .hw.init = &(struct clk_init_data){ + .name = "vcap_src", + .parent_names = mmcc_pxo_pll8_pll2, + .num_parents = 3, + .ops = &clk_dyn_rcg_ops, + }, + }, +}; + +static struct clk_branch vcap_clk = { + .halt_reg = 0x0240, + .halt_bit = 15, + .clkr = { + .enable_reg = 0x0178, + .enable_mask = BIT(0), + .hw.init = &(struct clk_init_data){ + .name = "vcap_clk", + .parent_names = (const char *[]){ "vcap_src" }, + .num_parents = 1, + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + +static struct clk_branch vcap_npl_clk = { + .halt_reg = 0x0240, + .halt_bit = 25, + .clkr = { + .enable_reg = 0x0178, + .enable_mask = BIT(13), + .hw.init = &(struct clk_init_data){ + .name = "vcap_npl_clk", + .parent_names = (const char *[]){ "vcap_src" }, + .num_parents = 1, + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + static struct freq_tbl clk_tbl_ijpeg[] = { { 27000000, P_PXO, 1, 0, 0 }, { 36570000, P_PLL8, 1, 2, 21 }, @@ -1323,6 +1481,38 @@ static struct clk_branch hdmi_tv_clk = { }, }; +static struct clk_branch rgb_tv_clk = { + .halt_reg = 0x0240, + .halt_bit = 27, + .clkr = { + .enable_reg = 0x0124, + .enable_mask = BIT(14), + .hw.init = &(struct clk_init_data){ + .parent_names = tv_src_name, + .num_parents = 1, + .name = "rgb_tv_clk", + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + +static struct clk_branch npl_tv_clk = { + .halt_reg = 0x0240, + .halt_bit = 26, + .clkr = { + .enable_reg = 0x0124, + .enable_mask = BIT(16), + .hw.init = &(struct clk_init_data){ + .parent_names = tv_src_name, + .num_parents = 1, + .name = "npl_tv_clk", + .ops = &clk_branch_ops, + .flags = CLK_SET_RATE_PARENT, + }, + }, +}; + static struct clk_branch hdmi_app_clk = { .halt_reg = 0x01cc, .halt_bit = 25, @@ -1698,6 +1888,22 @@ static struct clk_branch rot_axi_clk = { }, }; +static struct clk_branch vcap_axi_clk = { + .halt_reg = 0x0240, + .halt_bit = 20, + .hwcg_reg = 0x0244, + .hwcg_bit = 11, + .clkr = { + .enable_reg = 0x0244, + .enable_mask = BIT(12), + .hw.init = &(struct clk_init_data){ + .name = "vcap_axi_clk", + .ops = &clk_branch_ops, + .flags = CLK_IS_ROOT, + }, + }, +}; + static struct clk_branch vpe_axi_clk = { .hwcg_reg = 0x0020, .hwcg_bit = 27, @@ -2000,6 +2206,20 @@ static struct clk_branch tv_enc_ahb_clk = { }, }; +static struct clk_branch vcap_ahb_clk = { + .halt_reg = 0x0240, + .halt_bit = 23, + .clkr = { + .enable_reg = 0x0248, + .enable_mask = BIT(1), + .hw.init = &(struct clk_init_data){ + .name = "vcap_ahb_clk", + .ops = &clk_branch_ops, + .flags = CLK_IS_ROOT, + }, + }, +}; + static struct clk_branch vcodec_ahb_clk = { .hwcg_reg = 0x0038, .hwcg_bit = 26, @@ -2212,6 +2432,175 @@ static const struct qcom_reset_map mmcc_msm8960_resets[] = { [CSI_RDI2_RESET] = { 0x0214 }, }; +static struct clk_regmap *mmcc_apq8064_clks[] = { + [AMP_AHB_CLK] = &_ahb_clk.clkr, + [DSI2_S_AHB_CLK] = &dsi2_s_ahb_clk.clkr, + [JPEGD_AHB_CLK] = &jpegd_ahb_clk.clkr, + [DSI_S_AHB_CLK] = &dsi_s_ahb_clk.clkr, + [DSI2_M_AHB_CLK] = &dsi2_m_ahb_clk.clkr, + [VPE_AHB_CLK] = &vpe_ahb_clk.clkr, + [SMMU_AHB_CLK] = &smmu_ahb_clk.clkr, + [HDMI_M_AHB_CLK] = &hdmi_m_ahb_clk.clkr, + [VFE_AHB_CLK] = &vfe_ahb_clk.clkr, + [ROT_AHB_CLK] = &rot_ahb_clk.clkr, + [VCODEC_AHB_CLK] = &vcodec_ahb_clk.clkr, + [MDP_AHB_CLK] = &mdp_ahb_clk.clkr, + [DSI_M_AHB_CLK] = &dsi_m_ahb_clk.clkr, + [CSI_AHB_CLK] = &csi_ahb_clk.clkr, + [MMSS_IMEM_AHB_CLK] = &mmss_imem_ahb_clk.clkr, + [IJPEG_AHB_CLK] = &ijpeg_ahb_clk.clkr, + [HDMI_S_AHB_CLK] = &hdmi_s_ahb_clk.clkr, + [GFX3D_AHB_CLK] = &gfx3d_ahb_clk.clkr, + [JPEGD_AXI_CLK] = &jpegd_axi_clk.clkr, + [GMEM_AXI_CLK] = &gmem_axi_clk.clkr, + [MDP_AXI_CLK] = &mdp_axi_clk.clkr, + [MMSS_IMEM_AXI_CLK] = &mmss_imem_axi_clk.clkr, + [IJPEG_AXI_CLK] = &ijpeg_axi_clk.clkr, + [GFX3D_AXI_CLK] = &gfx3d_axi_clk.clkr, + [VCODEC_AXI_CLK] = &vcodec_axi_clk.clkr, + [VFE_AXI_CLK] = &vfe_axi_clk.clkr, + [VPE_AXI_CLK] = &vpe_axi_clk.clkr, + [ROT_AXI_CLK] = &rot_axi_clk.clkr, + [VCODEC_AXI_A_CLK] = &vcodec_axi_a_clk.clkr, + [VCODEC_AXI_B_CLK] = &vcodec_axi_b_clk.clkr, + [CSI0_SRC] = &csi0_src.clkr, + [CSI0_CLK] = &csi0_clk.clkr, + [CSI0_PHY_CLK] = &csi0_phy_clk.clkr, + [CSI1_SRC] = &csi1_src.clkr, + [CSI1_CLK] = &csi1_clk.clkr, + [CSI1_PHY_CLK] = &csi1_phy_clk.clkr, + [CSI2_SRC] = &csi2_src.clkr, + [CSI2_CLK] = &csi2_clk.clkr, + [CSI2_PHY_CLK] = &csi2_phy_clk.clkr, + [CSI_PIX_CLK] = &csi_pix_clk.clkr, + [CSI_RDI_CLK] = &csi_rdi_clk.clkr, + [MDP_VSYNC_CLK] = &mdp_vsync_clk.clkr, + [HDMI_APP_CLK] = &hdmi_app_clk.clkr, + [CSI_PIX1_CLK] = &csi_pix1_clk.clkr, + [CSI_RDI2_CLK] = &csi_rdi2_clk.clkr, + [CSI_RDI1_CLK] = &csi_rdi1_clk.clkr, + [GFX3D_SRC] = &gfx3d_src.clkr, + [GFX3D_CLK] = &gfx3d_clk.clkr, + [IJPEG_SRC] = &ijpeg_src.clkr, + [IJPEG_CLK] = &ijpeg_clk.clkr, + [JPEGD_SRC] = &jpegd_src.clkr, + [JPEGD_CLK] = &jpegd_clk.clkr, + [MDP_SRC] = &mdp_src.clkr, + [MDP_CLK] = &mdp_clk.clkr, + [MDP_LUT_CLK] = &mdp_lut_clk.clkr, + [ROT_SRC] = &rot_src.clkr, + [ROT_CLK] = &rot_clk.clkr, + [TV_DAC_CLK] = &tv_dac_clk.clkr, + [HDMI_TV_CLK] = &hdmi_tv_clk.clkr, + [MDP_TV_CLK] = &mdp_tv_clk.clkr, + [TV_SRC] = &tv_src.clkr, + [VCODEC_SRC] = &vcodec_src.clkr, + [VCODEC_CLK] = &vcodec_clk.clkr, + [VFE_SRC] = &vfe_src.clkr, + [VFE_CLK] = &vfe_clk.clkr, + [VFE_CSI_CLK] = &vfe_csi_clk.clkr, + [VPE_SRC] = &vpe_src.clkr, + [VPE_CLK] = &vpe_clk.clkr, + [CAMCLK0_SRC] = &camclk0_src.clkr, + [CAMCLK0_CLK] = &camclk0_clk.clkr, + [CAMCLK1_SRC] = &camclk1_src.clkr, + [CAMCLK1_CLK] = &camclk1_clk.clkr, + [CAMCLK2_SRC] = &camclk2_src.clkr, + [CAMCLK2_CLK] = &camclk2_clk.clkr, + [CSIPHYTIMER_SRC] = &csiphytimer_src.clkr, + [CSIPHY2_TIMER_CLK] = &csiphy2_timer_clk.clkr, + [CSIPHY1_TIMER_CLK] = &csiphy1_timer_clk.clkr, + [CSIPHY0_TIMER_CLK] = &csiphy0_timer_clk.clkr, + [PLL2] = &pll2.clkr, + [RGB_TV_CLK] = &rgb_tv_clk.clkr, + [NPL_TV_CLK] = &npl_tv_clk.clkr, + [VCAP_AHB_CLK] = &vcap_ahb_clk.clkr, + [VCAP_AXI_CLK] = &vcap_axi_clk.clkr, + [VCAP_SRC] = &vcap_src.clkr, + [VCAP_CLK] = &vcap_clk.clkr, + [VCAP_NPL_CLK] = &vcap_npl_clk.clkr, + [PLL15] = &pll15.clkr, +}; + +static const struct qcom_reset_map mmcc_apq8064_resets[] = { + [GFX3D_AXI_RESET] = { 0x0208, 17 }, + [VCAP_AXI_RESET] = { 0x0208, 16 }, + [VPE_AXI_RESET] = { 0x0208, 15 }, + [IJPEG_AXI_RESET] = { 0x0208, 14 }, + [MPD_AXI_RESET] = { 0x0208, 13 }, + [VFE_AXI_RESET] = { 0x0208, 9 }, + [SP_AXI_RESET] = { 0x0208, 8 }, + [VCODEC_AXI_RESET] = { 0x0208, 7 }, + [ROT_AXI_RESET] = { 0x0208, 6 }, + [VCODEC_AXI_A_RESET] = { 0x0208, 5 }, + [VCODEC_AXI_B_RESET] = { 0x0208, 4 }, + [FAB_S3_AXI_RESET] = { 0x0208, 3 }, + [FAB_S2_AXI_RESET] = { 0x0208, 2 }, + [FAB_S1_AXI_RESET] = { 0x0208, 1 }, + [FAB_S0_AXI_RESET] = { 0x0208 }, + [SMMU_GFX3D_ABH_RESET] = { 0x020c, 31 }, + [SMMU_VPE_AHB_RESET] = { 0x020c, 30 }, + [SMMU_VFE_AHB_RESET] = { 0x020c, 29 }, + [SMMU_ROT_AHB_RESET] = { 0x020c, 28 }, + [SMMU_VCODEC_B_AHB_RESET] = { 0x020c, 27 }, + [SMMU_VCODEC_A_AHB_RESET] = { 0x020c, 26 }, + [SMMU_MDP1_AHB_RESET] = { 0x020c, 25 }, + [SMMU_MDP0_AHB_RESET] = { 0x020c, 24 }, + [SMMU_JPEGD_AHB_RESET] = { 0x020c, 23 }, + [SMMU_IJPEG_AHB_RESET] = { 0x020c, 22 }, + [APU_AHB_RESET] = { 0x020c, 18 }, + [CSI_AHB_RESET] = { 0x020c, 17 }, + [TV_ENC_AHB_RESET] = { 0x020c, 15 }, + [VPE_AHB_RESET] = { 0x020c, 14 }, + [FABRIC_AHB_RESET] = { 0x020c, 13 }, + [GFX3D_AHB_RESET] = { 0x020c, 10 }, + [HDMI_AHB_RESET] = { 0x020c, 9 }, + [MSSS_IMEM_AHB_RESET] = { 0x020c, 8 }, + [IJPEG_AHB_RESET] = { 0x020c, 7 }, + [DSI_M_AHB_RESET] = { 0x020c, 6 }, + [DSI_S_AHB_RESET] = { 0x020c, 5 }, + [JPEGD_AHB_RESET] = { 0x020c, 4 }, + [MDP_AHB_RESET] = { 0x020c, 3 }, + [ROT_AHB_RESET] = { 0x020c, 2 }, + [VCODEC_AHB_RESET] = { 0x020c, 1 }, + [VFE_AHB_RESET] = { 0x020c, 0 }, + [SMMU_VCAP_AHB_RESET] = { 0x0200, 3 }, + [VCAP_AHB_RESET] = { 0x0200, 2 }, + [DSI2_M_AHB_RESET] = { 0x0200, 1 }, + [DSI2_S_AHB_RESET] = { 0x0200, 0 }, + [CSIPHY2_RESET] = { 0x0210, 31 }, + [CSI_PIX1_RESET] = { 0x0210, 30 }, + [CSIPHY0_RESET] = { 0x0210, 29 }, + [CSIPHY1_RESET] = { 0x0210, 28 }, + [CSI_RDI_RESET] = { 0x0210, 27 }, + [CSI_PIX_RESET] = { 0x0210, 26 }, + [DSI2_RESET] = { 0x0210, 25 }, + [VFE_CSI_RESET] = { 0x0210, 24 }, + [MDP_RESET] = { 0x0210, 21 }, + [AMP_RESET] = { 0x0210, 20 }, + [JPEGD_RESET] = { 0x0210, 19 }, + [CSI1_RESET] = { 0x0210, 18 }, + [VPE_RESET] = { 0x0210, 17 }, + [MMSS_FABRIC_RESET] = { 0x0210, 16 }, + [VFE_RESET] = { 0x0210, 15 }, + [GFX3D_RESET] = { 0x0210, 12 }, + [HDMI_RESET] = { 0x0210, 11 }, + [MMSS_IMEM_RESET] = { 0x0210, 10 }, + [IJPEG_RESET] = { 0x0210, 9 }, + [CSI0_RESET] = { 0x0210, 8 }, + [DSI_RESET] = { 0x0210, 7 }, + [VCODEC_RESET] = { 0x0210, 6 }, + [MDP_TV_RESET] = { 0x0210, 4 }, + [MDP_VSYNC_RESET] = { 0x0210, 3 }, + [ROT_RESET] = { 0x0210, 2 }, + [TV_HDMI_RESET] = { 0x0210, 1 }, + [VCAP_NPL_RESET] = { 0x0214, 4 }, + [VCAP_RESET] = { 0x0214, 3 }, + [CSI2_RESET] = { 0x0214, 2 }, + [CSI_RDI1_RESET] = { 0x0214, 1 }, + [CSI_RDI2_RESET] = { 0x0214 }, +}; + static const struct regmap_config mmcc_msm8960_regmap_config = { .reg_bits = 32, .reg_stride = 4, @@ -2220,6 +2609,14 @@ static const struct regmap_config mmcc_msm8960_regmap_config = { .fast_io = true, }; +static const struct regmap_config mmcc_apq8064_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .max_register = 0x350, + .fast_io = true, +}; + static const struct qcom_cc_desc mmcc_msm8960_desc = { .config = &mmcc_msm8960_regmap_config, .clks = mmcc_msm8960_clks, @@ -2228,15 +2625,47 @@ static const struct qcom_cc_desc mmcc_msm8960_desc = { .num_resets = ARRAY_SIZE(mmcc_msm8960_resets), }; +static const struct qcom_cc_desc mmcc_apq8064_desc = { + .config = &mmcc_apq8064_regmap_config, + .clks = mmcc_apq8064_clks, + .num_clks = ARRAY_SIZE(mmcc_apq8064_clks), + .resets = mmcc_apq8064_resets, + .num_resets = ARRAY_SIZE(mmcc_apq8064_resets), +}; + static const struct of_device_id mmcc_msm8960_match_table[] = { - { .compatible = "qcom,mmcc-msm8960" }, + { .compatible = "qcom,mmcc-msm8960", .data = &mmcc_msm8960_desc }, + { .compatible = "qcom,mmcc-apq8064", .data = &mmcc_apq8064_desc }, { } }; MODULE_DEVICE_TABLE(of, mmcc_msm8960_match_table); static int mmcc_msm8960_probe(struct platform_device *pdev) { - return qcom_cc_probe(pdev, &mmcc_msm8960_desc); + const struct of_device_id *match; + struct regmap *regmap; + bool is_8064; + struct device *dev = &pdev->dev; + + match = of_match_device(mmcc_msm8960_match_table, dev); + if (!match) + return -EINVAL; + + is_8064 = of_device_is_compatible(dev->of_node, "qcom,mmcc-apq8064"); + if (is_8064) { + gfx3d_src.freq_tbl = clk_tbl_gfx3d_8064; + gfx3d_src.clkr.hw.init = &gfx3d_8064_init; + gfx3d_src.s[0].parent_map = mmcc_pxo_pll8_pll2_pll15_map; + gfx3d_src.s[1].parent_map = mmcc_pxo_pll8_pll2_pll15_map; + } + + regmap = qcom_cc_map(pdev, match->data); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); + + clk_pll_configure_sr(&pll15, regmap, &pll15_config, false); + + return qcom_cc_really_probe(pdev, match->data, regmap); } static int mmcc_msm8960_remove(struct platform_device *pdev) |