Re: [PATCH 1/5] clk: ingenic: Use to_clk_info() macro for all clocks

2020-10-13 Thread Stephen Boyd
Quoting Paul Cercueil (2020-09-02 18:50:44)
> The to_clk_info() previously had a BUG_ON() to check that it was only
> called for PLL clocks. Yet, all the other clocks were doing the exact
> same thing the macro does, in-line.
> 
> Move the to_clk_info() macro to the top of the file, remove the
> hardcoded BUG_ON(), and use it everywhere it makes sense.
> 
> Signed-off-by: Paul Cercueil 
> ---

Applied to clk-next


[PATCH 1/5] clk: ingenic: Use to_clk_info() macro for all clocks

2020-09-02 Thread Paul Cercueil
The to_clk_info() previously had a BUG_ON() to check that it was only
called for PLL clocks. Yet, all the other clocks were doing the exact
same thing the macro does, in-line.

Move the to_clk_info() macro to the top of the file, remove the
hardcoded BUG_ON(), and use it everywhere it makes sense.

Signed-off-by: Paul Cercueil 
---
 drivers/clk/ingenic/cgu.c | 54 +++
 1 file changed, 15 insertions(+), 39 deletions(-)

diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c
index d7981b670221..12b14286734c 100644
--- a/drivers/clk/ingenic/cgu.c
+++ b/drivers/clk/ingenic/cgu.c
@@ -21,6 +21,12 @@
 
 #define MHZ (1000 * 1000)
 
+static inline const struct ingenic_cgu_clk_info *
+to_clk_info(struct ingenic_clk *clk)
+{
+   return >cgu->clock_info[clk->idx];
+}
+
 /**
  * ingenic_cgu_gate_get() - get the value of clock gate register bit
  * @cgu: reference to the CGU whose registers should be read
@@ -71,14 +77,13 @@ static unsigned long
 ingenic_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
 {
struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
+   const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk);
struct ingenic_cgu *cgu = ingenic_clk->cgu;
-   const struct ingenic_cgu_clk_info *clk_info;
const struct ingenic_cgu_pll_info *pll_info;
unsigned m, n, od_enc, od;
bool bypass;
u32 ctl;
 
-   clk_info = >clock_info[ingenic_clk->idx];
BUG_ON(clk_info->type != CGU_CLK_PLL);
pll_info = _info->pll;
 
@@ -144,18 +149,6 @@ ingenic_pll_calc(const struct ingenic_cgu_clk_info 
*clk_info,
n * od);
 }
 
-static inline const struct ingenic_cgu_clk_info *to_clk_info(
-   struct ingenic_clk *ingenic_clk)
-{
-   struct ingenic_cgu *cgu = ingenic_clk->cgu;
-   const struct ingenic_cgu_clk_info *clk_info;
-
-   clk_info = >clock_info[ingenic_clk->idx];
-   BUG_ON(clk_info->type != CGU_CLK_PLL);
-
-   return clk_info;
-}
-
 static long
 ingenic_pll_round_rate(struct clk_hw *hw, unsigned long req_rate,
   unsigned long *prate)
@@ -290,13 +283,11 @@ static const struct clk_ops ingenic_pll_ops = {
 static u8 ingenic_clk_get_parent(struct clk_hw *hw)
 {
struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
+   const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk);
struct ingenic_cgu *cgu = ingenic_clk->cgu;
-   const struct ingenic_cgu_clk_info *clk_info;
u32 reg;
u8 i, hw_idx, idx = 0;
 
-   clk_info = >clock_info[ingenic_clk->idx];
-
if (clk_info->type & CGU_CLK_MUX) {
reg = readl(cgu->base + clk_info->mux.reg);
hw_idx = (reg >> clk_info->mux.shift) &
@@ -318,14 +309,12 @@ static u8 ingenic_clk_get_parent(struct clk_hw *hw)
 static int ingenic_clk_set_parent(struct clk_hw *hw, u8 idx)
 {
struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
+   const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk);
struct ingenic_cgu *cgu = ingenic_clk->cgu;
-   const struct ingenic_cgu_clk_info *clk_info;
unsigned long flags;
u8 curr_idx, hw_idx, num_poss;
u32 reg, mask;
 
-   clk_info = >clock_info[ingenic_clk->idx];
-
if (clk_info->type & CGU_CLK_MUX) {
/*
 * Convert the parent index to the hardware index by adding
@@ -368,13 +357,11 @@ static unsigned long
 ingenic_clk_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
 {
struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
+   const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk);
struct ingenic_cgu *cgu = ingenic_clk->cgu;
-   const struct ingenic_cgu_clk_info *clk_info;
unsigned long rate = parent_rate;
u32 div_reg, div;
 
-   clk_info = >clock_info[ingenic_clk->idx];
-
if (clk_info->type & CGU_CLK_DIV) {
div_reg = readl(cgu->base + clk_info->div.reg);
div = (div_reg >> clk_info->div.shift) &
@@ -443,12 +430,9 @@ ingenic_clk_round_rate(struct clk_hw *hw, unsigned long 
req_rate,
   unsigned long *parent_rate)
 {
struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
-   struct ingenic_cgu *cgu = ingenic_clk->cgu;
-   const struct ingenic_cgu_clk_info *clk_info;
+   const struct ingenic_cgu_clk_info *clk_info = to_clk_info(ingenic_clk);
unsigned int div = 1;
 
-   clk_info = >clock_info[ingenic_clk->idx];
-
if (clk_info->type & CGU_CLK_DIV)
div = ingenic_clk_calc_div(clk_info, *parent_rate, req_rate);
else if (clk_info->type & CGU_CLK_FIXDIV)
@@ -462,16 +446,14 @@ ingenic_clk_set_rate(struct clk_hw *hw, unsigned long 
req_rate,
 unsigned long parent_rate)
 {
struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
+   const struct