[PATCH v3 0/2] clk: keystone: syscon-clk: Enable audio reference clock
Jai Luthra
j-luthra at ti.com
Thu Jun 15 04:55:34 PDT 2023
TI's AM62 SoC can optionally provide two audio reference clocks
(AUDIO_REFCLKx) to external peripherals. By default the reference clock
is looped-back inside the SoC to a mux that goes to McASP AHCLK, but can
optionally be enabled as an output to peripherals outside the SoC by
setting a bit through CTRL_MMR registers.
This patch series extends the existing syscon-clk driver to support
the audio reference clock, and also adds new device tree bindings
documentation.
Please apply this on-top-of Andrew's series [1] removing the unnecessary
dependency on syscon compatible.
[1]: https://lore.kernel.org/linux-clk/20230516184626.154892-1-afd@ti.com/#t
Signed-off-by: Jai Luthra <j-luthra at ti.com>
---
Changes in v3:
- Add missing headers for kasprintf/kfree in [PATCH 2/2]
- Add Conor's R-by for [PATCH 1/2]
- Link to v2: https://lore.kernel.org/r/20230515-refclk-v2-0-fc9ff08826f5@ti.com
Changes in v2:
- Removed "syscon" compatible and rebased on top of [1]
- Moved reg above other properties in bindings yaml
- Link to v1: https://lore.kernel.org/r/20230515-refclk-v1-0-5e89f01d6733@ti.com
Range diff from v2:
1: f1bb6a34efce ! 1: db84010f924d dt-bindings: clock: Add binding documentation for TI Audio REFCLK
@@ Commit message
Add DT bindings for TI's audio reference clocks (REFCLK) present on AM62
SoC.
+ Reviewed-by: Conor Dooley <conor.dooley at microchip.com>
Signed-off-by: Jai Luthra <j-luthra at ti.com>
## Documentation/devicetree/bindings/clock/ti,am62-audio-refclk.yaml (new) ##
2: bb1b58178bbd ! 2: 06186242572b clk: keystone: syscon-clk: Add support for audio refclk
@@ Commit message
Signed-off-by: Jai Luthra <j-luthra at ti.com>
## drivers/clk/keystone/syscon-clk.c ##
+@@
+ */
+
+ #include <linux/clk-provider.h>
++#include <linux/kernel.h>
+ #include <linux/mfd/syscon.h>
+ #include <linux/module.h>
+ #include <linux/platform_device.h>
+ #include <linux/regmap.h>
++#include <linux/slab.h>
+
+ struct ti_syscon_gate_clk_priv {
+ struct clk_hw hw;
@@ drivers/clk/keystone/syscon-clk.c: static const struct clk_ops ti_syscon_gate_clk_ops = {
static struct clk_hw
---
Jai Luthra (2):
dt-bindings: clock: Add binding documentation for TI Audio REFCLK
clk: keystone: syscon-clk: Add support for audio refclk
.../bindings/clock/ti,am62-audio-refclk.yaml | 43 +++++++++++++++++++++
drivers/clk/keystone/syscon-clk.c | 45 +++++++++++++++++++---
2 files changed, 83 insertions(+), 5 deletions(-)
---
base-commit: f9547f8abff52dfb21985057f10744558a7e4cc8
change-id: 20230515-refclk-5b544d314c23
Best regards,
--
Jai Luthra <j-luthra at ti.com>
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