ram: renesas: dbsc5: Fix JS1 index calculation

The JS1 index is calculated correctly, but the limiter cannot
be the max() function because the index should be lower than
JS1_USABLEC_SPEC_HI and the max() function would unconditionally
override the JS1 index to JS1_USABLEC_SPEC_HI. Use clamp() to
limit the JS1 index instead.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

diff --git a/drivers/ram/renesas/dbsc5/dram.c b/drivers/ram/renesas/dbsc5/dram.c
index 939775d4d16149334ecee634c897e4a2872182be..289d1224673b0b64a0b8ffbe934426b49e53350b 100644 (file)
--- a/drivers/ram/renesas/dbsc5/dram.c
+++ b/drivers/ram/renesas/dbsc5/dram.c
@@ -2192,7 +2192,7 @@ static void dbsc5_ddrtbl_calc(struct renesas_dbsc5_dram_priv *priv)
                if (js1[i].fx3 * 2 * priv->ddr_mbpsdiv >= priv->ddr_mbps * 3)
                        break;
 
-       priv->js1_ind = max(i, JS1_USABLEC_SPEC_HI);
+       priv->js1_ind = clamp(i, 0, JS1_USABLEC_SPEC_HI);
 
        priv->RL = js1[priv->js1_ind].RLset1;
        priv->WL = js1[priv->js1_ind].WLsetA;