Re: [PATCH v5 3/4] dt-bindings: clock: rk3588: export PCLK_VO1GRF clk id

From: zhangqing
Date: Thu Nov 09 2023 - 20:41:03 EST



在 2023/11/9 18:24, Krzysztof Kozlowski 写道:
On 09/11/2023 11:05, zhangqing wrote:
在 2023/11/9 17:21, Krzysztof Kozlowski 写道:
On 09/11/2023 09:06, zhangqing wrote:
在 2023/11/9 15:29, Conor Dooley 写道:
On Thu, Nov 09, 2023 at 02:27:38PM +0800, zhangqing wrote:
Hi:

在 2023/11/8 20:01, Conor Dooley 写道:
On Wed, Nov 08, 2023 at 02:18:21PM +0800, Elaine Zhang wrote:
export PCLK_VO1GRF for DT.

Signed-off-by: Elaine Zhang <zhangqing@xxxxxxxxxxxxxx>
---
include/dt-bindings/clock/rockchip,rk3588-cru.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/dt-bindings/clock/rockchip,rk3588-cru.h b/include/dt-bindings/clock/rockchip,rk3588-cru.h
index 5790b1391201..50ba72980190 100644
--- a/include/dt-bindings/clock/rockchip,rk3588-cru.h
+++ b/include/dt-bindings/clock/rockchip,rk3588-cru.h
@@ -733,8 +733,9 @@
#define ACLK_AV1_PRE 718
#define PCLK_AV1_PRE 719
#define HCLK_SDIO_PRE 720
+#define PCLK_VO1GRF 721
-#define CLK_NR_CLKS (HCLK_SDIO_PRE + 1)
+#define CLK_NR_CLKS (PCLK_VO1GRF + 1)
This definition is part of the ABI, if it is safe to change it, then it
is safe to delete it.
The new ID is to solve the niu clock dependency problem(Used in PATCH V5
4/4).This new ID will also be used in DTS in the future.

CLK_NR_CLKS represents the number of clocks used by the
drivers/clk/rockchip/clk-rkxxx.c. It is safe to modify it, but cannot delete
it.
Then delete it from the header and move it to clk-rkxxx.c
I don't think it's more appropriate to move to clk-rkxxx.c.
Because if there are new requirements later, and add new clk id, it is
not in the same file, maybe forget to modify CLK_NR_CLKS.
Then you are not allowed to change it. It's part of ABI.
If you just don't want me to modify CLK_NR_CLKS, can I use an unused ID,
like [PATCH V4 3/4]:

-#define MBIST_MCLK_PDM1                        24
+#define PCLK_VO1GRF                    24
You cannot change the ABI.

I don't understand why do you insist on this path. You got clear
comments: either this is ABI, so it cannot be changed, or it has to be
dropped. You know insist on some third path. There is no such.
Ok , I'll drop this change in PATCH V6.

Best regards,
Krzysztof

--
张晴
瑞芯微电子股份有限公司
Rockchip Electronics Co.,Ltd
地址:福建省福州市铜盘路软件大道89号软件园A区21号楼
Add:No.21 Building, A District, No.89 Software Boulevard Fuzhou, Fujian 350003, P.R.China
Tel:+86-0591-83991906-8601
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E-mail:elaine.zhang@xxxxxxxxxxxxxx
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