[PATCH v2] clk: qcom: gcc-shikra: Add additional frequencies for EMAC RGMII clocks

From: Imran Shaik

Date: Wed Jul 22 2026 - 00:41:52 EST


Add support for 2.5MHz and 25MHz GCC EMAC RGMII clock frequencies required
for EMAC 10M and 100M speeds respectively on Qualcomm Shikra SoC.

Tested-by: Mohd Ayaan Anwar <mohd.anwar@xxxxxxxxxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Reviewed-by: Taniya Das <taniya.das@xxxxxxxxxxxxxxxx>
Signed-off-by: Imran Shaik <imran.shaik@xxxxxxxxxxxxxxxx>
---
Changes in v2:
- Updated commit text to mention the 10M and 100M speed details [Konrad]
- Collected all the tags received on v1.
- Link to v1: https://lore.kernel.org/r/20260717-b4-shikra-gcc-emac-freqs-v1-1-110966417ac6@xxxxxxxxxxxxxxxx
---
drivers/clk/qcom/gcc-shikra.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/clk/qcom/gcc-shikra.c b/drivers/clk/qcom/gcc-shikra.c
index d5222756f214c356214039f95a93a28fc542801b..f2ab50209e1c037cb84db67951def053880406ff 100644
--- a/drivers/clk/qcom/gcc-shikra.c
+++ b/drivers/clk/qcom/gcc-shikra.c
@@ -1244,6 +1244,8 @@ static struct clk_rcg2 gcc_emac0_ptp_clk_src = {
};

static const struct freq_tbl ftbl_gcc_emac0_rgmii_clk_src[] = {
+ F(2500000, P_GPLL0_OUT_AUX2, 10, 1, 12),
+ F(25000000, P_GPLL0_OUT_AUX2, 12, 0, 0),
F(50000000, P_GPLL0_OUT_AUX2, 6, 0, 0),
F(125000000, P_GPLL12_OUT_AUX2, 4, 0, 0),
F(250000000, P_GPLL12_OUT_EARLY, 4, 0, 0),

---
base-commit: 1a1757b76427f6201bfe0bf1bea9f7574f332a93
change-id: 20260717-b4-shikra-gcc-emac-freqs-2469d8b64a75

Best regards,
--
Imran Shaik <imran.shaik@xxxxxxxxxxxxxxxx>