[PATCH 02/12] dt-bindings: document s3c24xx controller for external clock output

[PATCH 00/12] ARM: S3C24XX: convert s3c2410, s3c2440 s3c2442 to common clock framework · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 01/12] ARM: S3C24XX: cpufreq-utils: don't write raw values to MPLLCON when using ccf · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 01/12] ARM: S3C24XX: cpufreq-utils: don't write raw values to MPLLCON when using ccf · Tomasz Figa <hidden> · 2014-02-08
[PATCH 02/12] dt-bindings: document s3c24xx controller for external clock output · Heiko Stübner <heiko@sntech.de> · 2013-12-13
Re: [PATCH 02/12] dt-bindings: document s3c24xx controller for external clock output · Tomasz Figa <hidden> · 2014-02-09
Re: [PATCH 02/12] dt-bindings: document s3c24xx controller for external clock output · Heiko Stübner <heiko@sntech.de> · 2014-02-16
Re: [PATCH 02/12] dt-bindings: document s3c24xx controller for external clock output · Tomasz Figa <hidden> · 2014-02-16
[PATCH 03/12] clk: samsung: add clock driver for external clock outputs · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 03/12] clk: samsung: add clock driver for external clock outputs · Mike Turquette <hidden> · 2013-12-31
[PATCH 03/12] clk: samsung: add clock driver for external clock outputs · Tomasz Figa <hidden> · 2014-02-09
[PATCH 04/12] ARM: S3C24XX: enable usage of common dclk if common clock framework is enabled · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 05/12] ARM: S3C24XX: only store clock registers when old clock code is active · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 06/12] clk: samsung: add plls used by the early s3c24xx cpus · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 06/12] clk: samsung: add plls used by the early s3c24xx cpus · Mike Turquette <hidden> · 2013-12-31
[PATCH 08/12] clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442 · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 08/12] clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442 · Mike Turquette <hidden> · 2014-02-06
[PATCH 08/12] clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442 · Tomasz Figa <hidden> · 2014-02-09
[PATCH 08/12] clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442 · heiko@sntech.de (Heiko Stübner) · 2014-02-17
[PATCH 08/12] clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442 · Tomasz Figa <hidden> · 2014-02-17
[PATCH 08/12] clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442 · heiko@sntech.de (Heiko Stübner) · 2014-02-17
[PATCH 09/12] ARM: S3C24XX: add platform code for conversion to the common clock framework · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 10/12] ARM: S3C24XX: convert s3c2440 and s3c2442 to common clock framework · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 11/12] ARM: S3C24XX: convert s3c2410 to common clock framework · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 12/12] ARM: S3C24XX: remove legacy clock code · heiko@sntech.de (Heiko Stübner) · 2013-12-13
[PATCH 00/12] ARM: S3C24XX: convert s3c2410, s3c2440 s3c2442 to common clock framework · Tomasz Figa <hidden> · 2014-02-09
[PATCH 00/12] ARM: S3C24XX: convert s3c2410, s3c2440 s3c2442 to common clock framework · Kukjin Kim <hidden> · 2014-02-11
[PATCH 00/12] ARM: S3C24XX: convert s3c2410, s3c2440 s3c2442 to common clock framework · heiko@sntech.de (Heiko Stübner) · 2014-02-11

From: Tomasz Figa <hidden>
Date: 2014-02-09 01:54:40
Also in: linux-devicetree, linux-samsung-soc

Hi Heiko,

On 13.12.2013 13:59, Heiko St?bner wrote:

quoted hunk ↗ jump to hunk

The clock settings are distributed over a regular register and parts
of the misccr register.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
  .../bindings/clock/samsung,s3c2410-dclk.txt        |   53 ++++++++++++++++++++
  1 file changed, 53 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/clock/samsung,s3c2410-dclk.txt

diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c2410-dclk.txt b/Documentation/devicetree/bindings/clock/samsung,s3c2410-dclk.txt
new file mode 100644
index 0000000..0a1f7b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,s3c2410-dclk.txt

@@ -0,0 +1,53 @@
+* Samsung S3C24XX External Clock Output Controller
+
+The S3C24XX series can generate clock signals on two clock output pads.
+The clock binding described here is applicable to all SoCs in
+the s3c24x family.
+
+Required Properties:
+
+- compatible: should be one of the following.
+  - "samsung,s3c2410-dclk" - controller in S3C2410 SoCs.
+  - "samsung,s3c2412-dclk" - controller in S3C2412 SoCs.
+  - "samsung,s3c2440-dclk" - controller in S3C2440 and S3C2442 SoCs.
+  - "samsung,s3c2443-dclk" - controller in S3C2443 and later SoCs.
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- #clock-cells: should be 1.
+- samsung,misccr: phandle to the syscon managing the misccr register, which
+  holds configuration settings for different soc-components (clocks, usb, ...).

Hmm, looking at the datasheet, DCLK and CLKOUT registers seem to be part 
of the pin controller. I wonder if there is really a need for different 
driver and device node to handle them.

Could this be simply made a part of the s3c24xx pinctrl driver, 
extending it to register also a clock provider under the same DT node?

Best regards,
Tomasz

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