Re: [PATCH v2 2/4] clk: exynos5410: register clocks using common clockframework

From: Tarek Dakhran
Date: Tue Nov 05 2013 - 04:16:01 EST


Hi,

On 01.11.2013 20:58, Tomasz Figa wrote:
Hi,

On Monday 14 of October 2013 19:08:23 Vyacheslav Tyrtov wrote:
From: Tarek Dakhran <t.dakhran@xxxxxxxxxxx>

The EXYNOS5410 clocks are statically listed and registered
using the Samsung specific common clock helper functions.

Signed-off-by: Tarek Dakhran <t.dakhran@xxxxxxxxxxx>
Signed-off-by: Vyacheslav Tyrtov <v.tyrtov@xxxxxxxxxxx>
---
.../devicetree/bindings/clock/exynos5410-clock.txt | 37 +++
drivers/clk/samsung/Makefile | 1 +
drivers/clk/samsung/clk-exynos5410.c | 251
+++++++++++++++++++++ include/dt-bindings/clock/exynos5410.h
| 175 ++++++++++++++ 4 files changed, 464 insertions(+)
create mode 100644
Documentation/devicetree/bindings/clock/exynos5410-clock.txt create
mode 100644 drivers/clk/samsung/clk-exynos5410.c
create mode 100644 include/dt-bindings/clock/exynos5410.h
The driver looks pretty good now, thanks for addressing my comments to
previous version. There are still few issues remaining, though. Please see
my comments inline.

[snip]
diff --git a/drivers/clk/samsung/clk-exynos5410.c
b/drivers/clk/samsung/clk-exynos5410.c new file mode 100644
index 0000000..c5eba08
--- /dev/null
+++ b/drivers/clk/samsung/clk-exynos5410.c
[snip]
+static struct of_device_id ext_clk_match[] __initdata = {
+ { .compatible = "samsung,clock-oscclk", .data = (void *)0, },
+ { },
+};
I don't see anything in binding documentation mentioning this compatible
value. Anyway, since there is already a generic binding for fixed rate
clocks, this shouldn't be needed at all.

+
+/* register exynos5410 clocks */
+static void __init exynos5410_clk_init(struct device_node *np)
+{
+ void __iomem *reg_base;
+
+ reg_base = of_iomap(np, 0);
+ if (!reg_base)
+ panic("%s: failed to map registers\n", __func__);
+
+ samsung_clk_init(np, reg_base, CLK_NR_CLKS,
+ exynos5410_clk_regs,
ARRAY_SIZE(exynos5410_clk_regs),
+ NULL, 0);
+ samsung_clk_of_register_fixed_ext(exynos5410_frt_ext_clks,
+ ARRAY_SIZE(exynos5410_frt_ext_clks),
+ ext_clk_match);
This call could be dropped after moving to generic fixed rate clock
bindings.

Best regards,
Tomasz

Already done. Will be added in patch v3.


Thank you for comments, Tomasz.

Best regards,
Tarek Dakhran
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