clk: rockchip: simplify GRF handling in pll clocks
With the previous commit, the clock drivers now know at init time if the
GRF regmap is available. That means if it isn't available then, it also
won't become available later and we can therefore switch PLLs, that need
the GRF for the lock-status, to read-only mode - similar behaviour as the
aborting of rate changes we did before.
This saves some conditionals on every rate change and we can also drop
the rockchip_clk_get_grf function completely.
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c
index 8ac73bc..76e278d67 100644
--- a/drivers/clk/rockchip/clk-pll.c
+++ b/drivers/clk/rockchip/clk-pll.c
@@ -92,15 +92,10 @@
*/
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) {
@@ -253,13 +248,6 @@
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);
@@ -492,13 +480,6 @@
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);
@@ -565,11 +546,6 @@
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);
@@ -943,13 +919,13 @@
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;
diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index 9f99a42..7ffd134 100644
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -365,11 +365,6 @@
pr_err("%s: could not register clk provider\n", __func__);
}
-struct regmap *rockchip_clk_get_grf(struct rockchip_clk_provider *ctx)
-{
- return ctx->grf;
-}
-
void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx,
struct clk *clk, unsigned int id)
{
diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h
index 1abb7d0..2194ffa 100644
--- a/drivers/clk/rockchip/clk.h
+++ b/drivers/clk/rockchip/clk.h
@@ -600,7 +600,6 @@
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,