| /* |
| * Copyright (c) 2016, The Linux Foundation. All rights reserved. |
| * Copyright (C) 2013 Red Hat |
| * Author: Rob Clark <robdclark@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include <linux/clk-provider.h> |
| #include "hdmi.h" |
| |
| struct hdmi_pll_8960 { |
| struct platform_device *pdev; |
| struct clk_hw clk_hw; |
| void __iomem *mmio; |
| |
| unsigned long pixclk; |
| }; |
| |
| #define hw_clk_to_pll(x) container_of(x, struct hdmi_pll_8960, clk_hw) |
| |
| /* |
| * HDMI PLL: |
| * |
| * To get the parent clock setup properly, we need to plug in hdmi pll |
| * configuration into common-clock-framework. |
| */ |
| |
| struct pll_rate { |
| unsigned long rate; |
| int num_reg; |
| struct { |
| u32 val; |
| u32 reg; |
| } conf[32]; |
| }; |
| |
| /* NOTE: keep sorted highest freq to lowest: */ |
| static const struct pll_rate freqtbl[] = { |
| { 154000000, 14, { |
| { 0x08, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x0d, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x4d, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0x5e, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0x42, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| } |
| }, |
| /* 1080p60/1080p50 case */ |
| { 148500000, 27, { |
| { 0x02, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG }, |
| { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG }, |
| { 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG }, |
| { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B }, |
| { 0x76, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x01, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| { 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG3 }, |
| { 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 }, |
| { 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 }, |
| { 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 }, |
| { 0xe6, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 }, |
| } |
| }, |
| { 108000000, 13, { |
| { 0x08, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x21, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x1c, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x49, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x49, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| } |
| }, |
| /* 720p60/720p50/1080i60/1080i50/1080p24/1080p30/1080p25 */ |
| { 74250000, 8, { |
| { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B }, |
| { 0x12, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x76, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0xe6, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| } |
| }, |
| { 74176000, 14, { |
| { 0x18, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0xe5, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x0c, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0x7d, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0xbc, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| } |
| }, |
| { 65000000, 14, { |
| { 0x18, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0xf9, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x8a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x0b, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x4b, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0x7b, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0x09, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| } |
| }, |
| /* 480p60/480i60 */ |
| { 27030000, 18, { |
| { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B }, |
| { 0x38, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG }, |
| { 0x20, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0xff, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x4e, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0xd7, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0x03, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| { 0x2a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 }, |
| } |
| }, |
| /* 576p50/576i50 */ |
| { 27000000, 27, { |
| { 0x32, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG }, |
| { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG }, |
| { 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG }, |
| { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B }, |
| { 0x7b, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x01, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| { 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG3 }, |
| { 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 }, |
| { 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 }, |
| { 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 }, |
| { 0x2a, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x03, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 }, |
| } |
| }, |
| /* 640x480p60 */ |
| { 25200000, 27, { |
| { 0x32, REG_HDMI_8960_PHY_PLL_REFCLK_CFG }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_CHRG_PUMP_CFG }, |
| { 0x01, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG0 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_LOOP_FLT_CFG1 }, |
| { 0x2c, REG_HDMI_8960_PHY_PLL_IDAC_ADJ_CFG }, |
| { 0x06, REG_HDMI_8960_PHY_PLL_I_VI_KVCO_CFG }, |
| { 0x0a, REG_HDMI_8960_PHY_PLL_PWRDN_B }, |
| { 0x77, REG_HDMI_8960_PHY_PLL_SDM_CFG0 }, |
| { 0x4c, REG_HDMI_8960_PHY_PLL_SDM_CFG1 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG2 }, |
| { 0xc0, REG_HDMI_8960_PHY_PLL_SDM_CFG3 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SDM_CFG4 }, |
| { 0x9a, REG_HDMI_8960_PHY_PLL_SSC_CFG0 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG1 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_SSC_CFG2 }, |
| { 0x20, REG_HDMI_8960_PHY_PLL_SSC_CFG3 }, |
| { 0x10, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0 }, |
| { 0x1a, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1 }, |
| { 0x0d, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2 }, |
| { 0xf4, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG0 }, |
| { 0x02, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG1 }, |
| { 0x3b, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG2 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG3 }, |
| { 0x86, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG4 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG5 }, |
| { 0x33, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG6 }, |
| { 0x00, REG_HDMI_8960_PHY_PLL_VCOCAL_CFG7 }, |
| } |
| }, |
| }; |
| |
| static inline void pll_write(struct hdmi_pll_8960 *pll, u32 reg, u32 data) |
| { |
| msm_writel(data, pll->mmio + reg); |
| } |
| |
| static inline u32 pll_read(struct hdmi_pll_8960 *pll, u32 reg) |
| { |
| return msm_readl(pll->mmio + reg); |
| } |
| |
| static inline struct hdmi_phy *pll_get_phy(struct hdmi_pll_8960 *pll) |
| { |
| return platform_get_drvdata(pll->pdev); |
| } |
| |
| static int hdmi_pll_enable(struct clk_hw *hw) |
| { |
| struct hdmi_pll_8960 *pll = hw_clk_to_pll(hw); |
| struct hdmi_phy *phy = pll_get_phy(pll); |
| int timeout_count, pll_lock_retry = 10; |
| unsigned int val; |
| |
| DBG(""); |
| |
| /* Assert PLL S/W reset */ |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x8d); |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG0, 0x10); |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG1, 0x1a); |
| |
| /* Wait for a short time before de-asserting |
| * to allow the hardware to complete its job. |
| * This much of delay should be fine for hardware |
| * to assert and de-assert. |
| */ |
| udelay(10); |
| |
| /* De-assert PLL S/W reset */ |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x0d); |
| |
| val = hdmi_phy_read(phy, REG_HDMI_8960_PHY_REG12); |
| val |= HDMI_8960_PHY_REG12_SW_RESET; |
| /* Assert PHY S/W reset */ |
| hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val); |
| val &= ~HDMI_8960_PHY_REG12_SW_RESET; |
| /* |
| * Wait for a short time before de-asserting to allow the hardware to |
| * complete its job. This much of delay should be fine for hardware to |
| * assert and de-assert. |
| */ |
| udelay(10); |
| /* De-assert PHY S/W reset */ |
| hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val); |
| hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG2, 0x3f); |
| |
| val = hdmi_phy_read(phy, REG_HDMI_8960_PHY_REG12); |
| val |= HDMI_8960_PHY_REG12_PWRDN_B; |
| hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val); |
| /* Wait 10 us for enabling global power for PHY */ |
| mb(); |
| udelay(10); |
| |
| val = pll_read(pll, REG_HDMI_8960_PHY_PLL_PWRDN_B); |
| val |= HDMI_8960_PHY_PLL_PWRDN_B_PLL_PWRDN_B; |
| val &= ~HDMI_8960_PHY_PLL_PWRDN_B_PD_PLL; |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_PWRDN_B, val); |
| hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG2, 0x80); |
| |
| timeout_count = 1000; |
| while (--pll_lock_retry > 0) { |
| /* are we there yet? */ |
| val = pll_read(pll, REG_HDMI_8960_PHY_PLL_STATUS0); |
| if (val & HDMI_8960_PHY_PLL_STATUS0_PLL_LOCK) |
| break; |
| |
| udelay(1); |
| |
| if (--timeout_count > 0) |
| continue; |
| |
| /* |
| * PLL has still not locked. |
| * Do a software reset and try again |
| * Assert PLL S/W reset first |
| */ |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x8d); |
| udelay(10); |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_LOCKDET_CFG2, 0x0d); |
| |
| /* |
| * Wait for a short duration for the PLL calibration |
| * before checking if the PLL gets locked |
| */ |
| udelay(350); |
| |
| timeout_count = 1000; |
| } |
| |
| return 0; |
| } |
| |
| static void hdmi_pll_disable(struct clk_hw *hw) |
| { |
| struct hdmi_pll_8960 *pll = hw_clk_to_pll(hw); |
| struct hdmi_phy *phy = pll_get_phy(pll); |
| unsigned int val; |
| |
| DBG(""); |
| |
| val = hdmi_phy_read(phy, REG_HDMI_8960_PHY_REG12); |
| val &= ~HDMI_8960_PHY_REG12_PWRDN_B; |
| hdmi_phy_write(phy, REG_HDMI_8960_PHY_REG12, val); |
| |
| val = pll_read(pll, REG_HDMI_8960_PHY_PLL_PWRDN_B); |
| val |= HDMI_8960_PHY_REG12_SW_RESET; |
| val &= ~HDMI_8960_PHY_REG12_PWRDN_B; |
| pll_write(pll, REG_HDMI_8960_PHY_PLL_PWRDN_B, val); |
| /* Make sure HDMI PHY/PLL are powered down */ |
| mb(); |
| } |
| |
| static const struct pll_rate *find_rate(unsigned long rate) |
| { |
| int i; |
| |
| for (i = 1; i < ARRAY_SIZE(freqtbl); i++) |
| if (rate > freqtbl[i].rate) |
| return &freqtbl[i - 1]; |
| |
| return &freqtbl[i - 1]; |
| } |
| |
| static unsigned long hdmi_pll_recalc_rate(struct clk_hw *hw, |
| unsigned long parent_rate) |
| { |
| struct hdmi_pll_8960 *pll = hw_clk_to_pll(hw); |
| |
| return pll->pixclk; |
| } |
| |
| static long hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate, |
| unsigned long *parent_rate) |
| { |
| const struct pll_rate *pll_rate = find_rate(rate); |
| |
| return pll_rate->rate; |
| } |
| |
| static int hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate, |
| unsigned long parent_rate) |
| { |
| struct hdmi_pll_8960 *pll = hw_clk_to_pll(hw); |
| const struct pll_rate *pll_rate = find_rate(rate); |
| int i; |
| |
| DBG("rate=%lu", rate); |
| |
| for (i = 0; i < pll_rate->num_reg; i++) |
| pll_write(pll, pll_rate->conf[i].reg, pll_rate->conf[i].val); |
| |
| pll->pixclk = rate; |
| |
| return 0; |
| } |
| |
| static const struct clk_ops hdmi_pll_ops = { |
| .enable = hdmi_pll_enable, |
| .disable = hdmi_pll_disable, |
| .recalc_rate = hdmi_pll_recalc_rate, |
| .round_rate = hdmi_pll_round_rate, |
| .set_rate = hdmi_pll_set_rate, |
| }; |
| |
| static const char * const hdmi_pll_parents[] = { |
| "pxo", |
| }; |
| |
| static struct clk_init_data pll_init = { |
| .name = "hdmi_pll", |
| .ops = &hdmi_pll_ops, |
| .parent_names = hdmi_pll_parents, |
| .num_parents = ARRAY_SIZE(hdmi_pll_parents), |
| .flags = CLK_IGNORE_UNUSED, |
| }; |
| |
| int msm_hdmi_pll_8960_init(struct platform_device *pdev) |
| { |
| struct device *dev = &pdev->dev; |
| struct hdmi_pll_8960 *pll; |
| struct clk *clk; |
| int i; |
| |
| /* sanity check: */ |
| for (i = 0; i < (ARRAY_SIZE(freqtbl) - 1); i++) |
| if (WARN_ON(freqtbl[i].rate < freqtbl[i + 1].rate)) |
| return -EINVAL; |
| |
| pll = devm_kzalloc(dev, sizeof(*pll), GFP_KERNEL); |
| if (!pll) |
| return -ENOMEM; |
| |
| pll->mmio = msm_ioremap(pdev, "hdmi_pll", "HDMI_PLL"); |
| if (IS_ERR(pll->mmio)) { |
| dev_err(dev, "failed to map pll base\n"); |
| return -ENOMEM; |
| } |
| |
| pll->pdev = pdev; |
| pll->clk_hw.init = &pll_init; |
| |
| clk = devm_clk_register(dev, &pll->clk_hw); |
| if (IS_ERR(clk)) { |
| dev_err(dev, "failed to register pll clock\n"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
