diff --git a/drivers/clk/renesas/r8a774a1-cpg-mssr.c b/drivers/clk/renesas/r8a774a1-cpg-mssr.c index 4d92b27a6153..99bcb7c8022f 100644 --- a/drivers/clk/renesas/r8a774a1-cpg-mssr.c +++ b/drivers/clk/renesas/r8a774a1-cpg-mssr.c @@ -71,8 +71,8 @@ static const struct cpg_core_clk r8a774a1_core_clks[] __initconst = { DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32), /* Core Clock Outputs */ - DEF_BASE("z", R8A774A1_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0), - DEF_BASE("z2", R8A774A1_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2), + DEF_GEN3_Z("z", R8A774A1_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2), + DEF_GEN3_Z("z2", R8A774A1_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2), DEF_FIXED("ztr", R8A774A1_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), DEF_FIXED("ztrd2", R8A774A1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), DEF_FIXED("zt", R8A774A1_CLK_ZT, CLK_PLL1_DIV2, 4, 1), diff --git a/drivers/clk/renesas/r8a7795-cpg-mssr.c b/drivers/clk/renesas/r8a7795-cpg-mssr.c index 86842c9fd314..d4cf1c91533e 100644 --- a/drivers/clk/renesas/r8a7795-cpg-mssr.c +++ b/drivers/clk/renesas/r8a7795-cpg-mssr.c @@ -3,6 +3,7 @@ * r8a7795 Clock Pulse Generator / Module Standby and Software Reset * * Copyright (C) 2015 Glider bvba + * Copyright (C) 2018 Renesas Electronics Corp. * * Based on clk-rcar-gen3.c * @@ -73,8 +74,8 @@ static struct cpg_core_clk r8a7795_core_clks[] __initdata = { DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32), /* Core Clock Outputs */ - DEF_BASE("z", R8A7795_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0), - DEF_BASE("z2", R8A7795_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2), + DEF_GEN3_Z("z", R8A7795_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2), + DEF_GEN3_Z("z2", R8A7795_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2), DEF_FIXED("ztr", R8A7795_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), DEF_FIXED("ztrd2", R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), DEF_FIXED("zt", R8A7795_CLK_ZT, CLK_PLL1_DIV2, 4, 1), diff --git a/drivers/clk/renesas/r8a7796-cpg-mssr.c b/drivers/clk/renesas/r8a7796-cpg-mssr.c index 12c455859f2c..77254f2b4519 100644 --- a/drivers/clk/renesas/r8a7796-cpg-mssr.c +++ b/drivers/clk/renesas/r8a7796-cpg-mssr.c @@ -3,6 +3,7 @@ * r8a7796 Clock Pulse Generator / Module Standby and Software Reset * * Copyright (C) 2016 Glider bvba + * Copyright (C) 2018 Renesas Electronics Corp. * * Based on r8a7795-cpg-mssr.c * @@ -73,8 +74,8 @@ static const struct cpg_core_clk r8a7796_core_clks[] __initconst = { DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32), /* Core Clock Outputs */ - DEF_BASE("z", R8A7796_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0), - DEF_BASE("z2", R8A7796_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2), + DEF_GEN3_Z("z", R8A7796_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2), + DEF_GEN3_Z("z2", R8A7796_CLK_Z2, CLK_TYPE_GEN3_Z2, CLK_PLL2, 2), DEF_FIXED("ztr", R8A7796_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), DEF_FIXED("ztrd2", R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), DEF_FIXED("zt", R8A7796_CLK_ZT, CLK_PLL1_DIV2, 4, 1), diff --git a/drivers/clk/renesas/r8a77965-cpg-mssr.c b/drivers/clk/renesas/r8a77965-cpg-mssr.c index eb1cca58a1e1..f8f73558c1ec 100644 --- a/drivers/clk/renesas/r8a77965-cpg-mssr.c +++ b/drivers/clk/renesas/r8a77965-cpg-mssr.c @@ -71,7 +71,7 @@ static const struct cpg_core_clk r8a77965_core_clks[] __initconst = { DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32), /* Core Clock Outputs */ - DEF_BASE("z", R8A77965_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0), + DEF_GEN3_Z("z", R8A77965_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2), DEF_FIXED("ztr", R8A77965_CLK_ZTR, CLK_PLL1_DIV2, 6, 1), DEF_FIXED("ztrd2", R8A77965_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1), DEF_FIXED("zt", R8A77965_CLK_ZT, CLK_PLL1_DIV2, 4, 1), diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c index dcd4ac389326..13071198117c 100644 --- a/drivers/clk/renesas/rcar-gen3-cpg.c +++ b/drivers/clk/renesas/rcar-gen3-cpg.c @@ -96,6 +96,7 @@ struct cpg_z_clk { void __iomem *reg; void __iomem *kick_reg; unsigned long mask; + unsigned int fixed_div; }; #define to_z_clk(_hw) container_of(_hw, struct cpg_z_clk, hw) @@ -110,17 +111,18 @@ static unsigned long cpg_z_clk_recalc_rate(struct clk_hw *hw, val = readl(zclk->reg) & zclk->mask; mult = 32 - (val >> __ffs(zclk->mask)); - /* Factor of 2 is for fixed divider */ - return DIV_ROUND_CLOSEST_ULL((u64)parent_rate * mult, 32 * 2); + return DIV_ROUND_CLOSEST_ULL((u64)parent_rate * mult, + 32 * zclk->fixed_div); } static long cpg_z_clk_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { - /* Factor of 2 is for fixed divider */ - unsigned long prate = *parent_rate / 2; + struct cpg_z_clk *zclk = to_z_clk(hw); + unsigned long prate; unsigned int mult; + prate = *parent_rate / zclk->fixed_div; mult = div_u64(rate * 32ULL, prate); mult = clamp(mult, 1U, 32U); @@ -134,8 +136,8 @@ static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned int mult; unsigned int i; - /* Factor of 2 is for fixed divider */ - mult = DIV_ROUND_CLOSEST_ULL(rate * 32ULL * 2, parent_rate); + mult = DIV_ROUND_CLOSEST_ULL(rate * 32ULL * zclk->fixed_div, + parent_rate); mult = clamp(mult, 1U, 32U); if (readl(zclk->kick_reg) & CPG_FRQCRB_KICK) @@ -178,7 +180,8 @@ static const struct clk_ops cpg_z_clk_ops = { static struct clk * __init cpg_z_clk_register(const char *name, const char *parent_name, void __iomem *reg, - unsigned long mask) + unsigned long mask, + unsigned int div) { struct clk_init_data init; struct cpg_z_clk *zclk; @@ -198,6 +201,7 @@ static struct clk * __init cpg_z_clk_register(const char *name, zclk->kick_reg = reg + CPG_FRQCRB; zclk->hw.init = &init; zclk->mask = mask; + zclk->fixed_div = div; /* PLLVCO x 1/div x SYS-CPU divider */ clk = clk_register(NULL, &zclk->hw); if (IS_ERR(clk)) @@ -658,11 +662,13 @@ struct clk * __init rcar_gen3_cpg_clk_register(struct device *dev, case CLK_TYPE_GEN3_Z: return cpg_z_clk_register(core->name, __clk_get_name(parent), - base, CPG_FRQCRC_ZFC_MASK); + base, CPG_FRQCRC_ZFC_MASK, + core->div); case CLK_TYPE_GEN3_Z2: return cpg_z_clk_register(core->name, __clk_get_name(parent), - base, CPG_FRQCRC_Z2FC_MASK); + base, CPG_FRQCRC_Z2FC_MASK, + core->div); case CLK_TYPE_GEN3_OSC: /* diff --git a/drivers/clk/renesas/rcar-gen3-cpg.h b/drivers/clk/renesas/rcar-gen3-cpg.h index eac1b057455a..802936625330 100644 --- a/drivers/clk/renesas/rcar-gen3-cpg.h +++ b/drivers/clk/renesas/rcar-gen3-cpg.h @@ -3,6 +3,7 @@ * R-Car Gen3 Clock Pulse Generator * * Copyright (C) 2015-2018 Glider bvba + * Copyright (C) 2018 Renesas Electronics Corp. * */ @@ -51,6 +52,9 @@ enum rcar_gen3_clk_types { DEF_BASE(_name, _id, CLK_TYPE_GEN3_RCKSEL, \ (_parent0) << 16 | (_parent1), .div = (_div0) << 16 | (_div1)) +#define DEF_GEN3_Z(_name, _id, _type, _parent, _div) \ + DEF_BASE(_name, _id, _type, _parent, .div = _div) + struct rcar_gen3_cpg_pll_config { u8 extal_div; u8 pll1_mult;