summaryrefslogtreecommitdiffstats
path: root/drivers/clk/qcom/clk-rcg.h
diff options
context:
space:
mode:
authorGeorgi Djakov <georgi.djakov@linaro.org>2015-09-17 19:39:27 +0300
committerStephen Boyd <sboyd@codeaurora.org>2015-09-17 12:35:59 -0700
commitd042877aa7a36e7a5e0bb8c60dcd86e939f205c9 (patch)
treeffebe6f237d2fd9fffda7fcae6bce50fd7a3cfaa /drivers/clk/qcom/clk-rcg.h
parent93e71695daa654918fbe5b768cd8c5bca677df0c (diff)
downloadop-kernel-dev-d042877aa7a36e7a5e0bb8c60dcd86e939f205c9.zip
op-kernel-dev-d042877aa7a36e7a5e0bb8c60dcd86e939f205c9.tar.gz
clk: qcom: Add support for RCGs with shared branches
Some root clock generators may have child branches that are controlled by different CPUs. These RCGs require some special operations: - some enable bits have to be toggled when we set the rate; - if RCG is disabled we only cache the rate and set it later when enabled; - when the RCG is disabled, the mux is set to the safe source; Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> [sboyd@codeaurora.org: Simplify recalc_rate implementation] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Diffstat (limited to 'drivers/clk/qcom/clk-rcg.h')
-rw-r--r--drivers/clk/qcom/clk-rcg.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/clk/qcom/clk-rcg.h b/drivers/clk/qcom/clk-rcg.h
index 31f92d7..5012e5b 100644
--- a/drivers/clk/qcom/clk-rcg.h
+++ b/drivers/clk/qcom/clk-rcg.h
@@ -153,8 +153,8 @@ extern const struct clk_ops clk_dyn_rcg_ops;
* @hid_width: number of bits in half integer divider
* @parent_map: map from software's parent index to hardware's src_sel field
* @freq_tbl: frequency table
+ * @current_freq: last cached frequency when using branches with shared RCGs
* @clkr: regmap clock handle
- * @lock: register lock
*
*/
struct clk_rcg2 {
@@ -163,12 +163,14 @@ struct clk_rcg2 {
u8 hid_width;
const struct parent_map *parent_map;
const struct freq_tbl *freq_tbl;
+ unsigned long current_freq;
struct clk_regmap clkr;
};
#define to_clk_rcg2(_hw) container_of(to_clk_regmap(_hw), struct clk_rcg2, clkr)
extern const struct clk_ops clk_rcg2_ops;
+extern const struct clk_ops clk_rcg2_shared_ops;
extern const struct clk_ops clk_edp_pixel_ops;
extern const struct clk_ops clk_byte_ops;
extern const struct clk_ops clk_byte2_ops;
OpenPOWER on IntegriCloud