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Merge tag 'v4.7-rockchip-clk4' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next 

Pull rockchip clk updates from Heiko Stuebner:

Another small rk3399 fixup as well as simplifications around
our handling of the General-Register-Files syscon.

* tag 'v4.7-rockchip-clk4' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: drop old_rate calculation on pll rate changes
  clk: rockchip: simplify GRF handling in pll clocks
  clk: rockchip: lookup General Register Files in rockchip_clk_init
  clk: rockchip: fix the rk3399 sdmmc sample / drv name
This commit is contained in:
Stephen Boyd 2016-05-09 16:04:37 -07:00
parent 98b8525abb 7e5385dc72
commit 5707291c6c
4 changed files with 14 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/clk/rockchip/clk-pll.c
View File

@ -92,15 +92,10 @@ static long rockchip_pll_round_rate(struct clk_hw *hw,
*/
static int rockchip_pll_wait_lock(struct rockchip_clk_pll *pll)
{
struct regmap *grf = rockchip_clk_get_grf(pll->ctx);
struct regmap *grf = pll->ctx->grf;
unsigned int val;
int delay = 24000000, ret;
if (IS_ERR(grf)) {
pr_err("%s: grf regmap not available\n", __func__);
return PTR_ERR(grf);
}
while (delay > 0) {
ret = regmap_read(grf, pll->lock_offset, &val);
if (ret) {
@ -252,17 +247,9 @@ static int rockchip_rk3036_pll_set_rate(struct clk_hw *hw, unsigned long drate,
{
struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
const struct rockchip_pll_rate_table *rate;
unsigned long old_rate = rockchip_rk3036_pll_recalc_rate(hw, prate);
struct regmap *grf = rockchip_clk_get_grf(pll->ctx);
if (IS_ERR(grf)) {
pr_debug("%s: grf regmap not available, aborting rate change\n",
__func__);
return PTR_ERR(grf);
}
pr_debug("%s: changing %s from %lu to %lu with a parent rate of %lu\n",
__func__, __clk_get_name(hw->clk), old_rate, drate, prate);
pr_debug("%s: changing %s to %lu with a parent rate of %lu\n",
__func__, __clk_get_name(hw->clk), drate, prate);
/* Get required rate settings from table */
rate = rockchip_get_pll_settings(pll, drate);
@ -491,17 +478,9 @@ static int rockchip_rk3066_pll_set_rate(struct clk_hw *hw, unsigned long drate,
{
struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
const struct rockchip_pll_rate_table *rate;
unsigned long old_rate = rockchip_rk3066_pll_recalc_rate(hw, prate);
struct regmap *grf = rockchip_clk_get_grf(pll->ctx);
if (IS_ERR(grf)) {
pr_debug("%s: grf regmap not available, aborting rate change\n",
__func__);
return PTR_ERR(grf);
}
pr_debug("%s: changing %s from %lu to %lu with a parent rate of %lu\n",
__func__, clk_hw_get_name(hw), old_rate, drate, prate);
pr_debug("%s: changing %s to %lu with a parent rate of %lu\n",
__func__, clk_hw_get_name(hw), drate, prate);
/* Get required rate settings from table */
rate = rockchip_get_pll_settings(pll, drate);
@ -565,11 +544,6 @@ static void rockchip_rk3066_pll_init(struct clk_hw *hw)
rate->no, cur.no, rate->nf, cur.nf, rate->nb, cur.nb);
if (rate->nr != cur.nr || rate->no != cur.no || rate->nf != cur.nf
|| rate->nb != cur.nb) {
struct regmap *grf = rockchip_clk_get_grf(pll->ctx);
if (IS_ERR(grf))
return;
pr_debug("%s: pll %s: rate params do not match rate table, adjusting\n",
__func__, clk_hw_get_name(hw));
rockchip_rk3066_pll_set_params(pll, rate);
@ -749,10 +723,9 @@ static int rockchip_rk3399_pll_set_rate(struct clk_hw *hw, unsigned long drate,
{
struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw);
const struct rockchip_pll_rate_table *rate;
unsigned long old_rate = rockchip_rk3399_pll_recalc_rate(hw, prate);
pr_debug("%s: changing %s from %lu to %lu with a parent rate of %lu\n",
__func__, __clk_get_name(hw->clk), old_rate, drate, prate);
pr_debug("%s: changing %s to %lu with a parent rate of %lu\n",
__func__, __clk_get_name(hw->clk), drate, prate);
/* Get required rate settings from table */
rate = rockchip_get_pll_settings(pll, drate);
@ -943,13 +916,13 @@ struct clk *rockchip_clk_register_pll(struct rockchip_clk_provider *ctx,
switch (pll_type) {
case pll_rk3036:
if (!pll->rate_table)
if (!pll->rate_table || IS_ERR(ctx->grf))
init.ops = &rockchip_rk3036_pll_clk_norate_ops;
else
init.ops = &rockchip_rk3036_pll_clk_ops;
break;
case pll_rk3066:
if (!pll->rate_table)
if (!pll->rate_table || IS_ERR(ctx->grf))
init.ops = &rockchip_rk3066_pll_clk_norate_ops;
else
init.ops = &rockchip_rk3066_pll_clk_ops;

4
drivers/clk/rockchip/clk-rk3399.c
View File

@ -894,8 +894,8 @@ static struct rockchip_clk_branch rk3399_clk_branches[] __initdata = {
RK3399_CLKSEL_CON(16), 8, 3, MFLAGS, 0, 7, DFLAGS,
RK3399_CLKGATE_CON(6), 1, GFLAGS),
MMC(SCLK_SDMMC_DRV, "emmc_drv", "clk_sdmmc", RK3399_SDMMC_CON0, 1),
MMC(SCLK_SDMMC_SAMPLE, "emmc_sample", "clk_sdmmc", RK3399_SDMMC_CON1, 1),
MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "clk_sdmmc", RK3399_SDMMC_CON0, 1),
MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "clk_sdmmc", RK3399_SDMMC_CON1, 1),
MMC(SCLK_SDIO_DRV, "sdio_drv", "clk_sdio", RK3399_SDIO_CON0, 1),
MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "clk_sdio", RK3399_SDIO_CON1, 1),

11
drivers/clk/rockchip/clk.c
View File

@ -347,6 +347,9 @@ struct rockchip_clk_provider * __init rockchip_clk_init(struct device_node *np,
ctx->grf = ERR_PTR(-EPROBE_DEFER);
spin_lock_init(&ctx->lock);
ctx->grf = syscon_regmap_lookup_by_phandle(ctx->cru_node,
"rockchip,grf");
return ctx;
err_free:
@ -362,14 +365,6 @@ void __init rockchip_clk_of_add_provider(struct device_node *np,
pr_err("%s: could not register clk provider\n", __func__);
}
struct regmap *rockchip_clk_get_grf(struct rockchip_clk_provider *ctx)
{
if (IS_ERR(ctx->grf))
ctx->grf = syscon_regmap_lookup_by_phandle(ctx->cru_node,
"rockchip,grf");
return ctx->grf;
}
void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx,
struct clk *clk, unsigned int id)
{

1
drivers/clk/rockchip/clk.h
View File

@ -600,7 +600,6 @@ struct rockchip_clk_provider *rockchip_clk_init(struct device_node *np,
void __iomem *base, unsigned long nr_clks);
void rockchip_clk_of_add_provider(struct device_node *np,
struct rockchip_clk_provider *ctx);
struct regmap *rockchip_clk_get_grf(struct rockchip_clk_provider *ctx);
void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx,
struct clk *clk, unsigned int id);
void rockchip_clk_register_branches(struct rockchip_clk_provider *ctx,