>From 0f8976e33533826d0df360c0ce01a5efd428b663 Mon Sep 17 00:00:00 2001
From: Chin Liang See <cl...@altera.com>
Date: Thu, 15 Oct 2015 13:57:27 +0800
Subject: [PATCH v4 3/5] spi: cadence_qspi: Ensure check for max
frequency in
place
Ensure the intended SCLK frequency not exceeding the maximum
frequency. If that happen, SCLK will set to maximum frequency.
Signed-off-by: Chin Liang See <cl...@altera.com>
Cc: Dinh Nguyen <dingu...@opensource.altera.com>
Cc: Dinh Nguyen <dinh.li...@gmail.com>
Cc: Marek Vasut <ma...@denx.de>
Cc: Stefan Roese <s...@denx.de>
Cc: Vikas Manocha <vikas.mano...@st.com>
Cc: Jagannadh Teki <jt...@openedev.com>
Cc: Pavel Machek <pa...@denx.de>
Acked-by: Pavel Machek <pa...@denx.de>
---
Changes for v4
- no changes
Changes for v3
- Remove the printout
Changes for v2
- no changes
---
drivers/spi/cadence_qspi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
index 5756178..4f7fd52 100644
--- a/drivers/spi/cadence_qspi.c
+++ b/drivers/spi/cadence_qspi.c
@@ -122,6 +122,9 @@ static int cadence_spi_set_speed(struct udevice
*bus, uint hz)
struct cadence_spi_priv *priv = dev_get_priv(bus);
int err;
+ if (hz > plat->max_hz)
+ hz = plat->max_hz;
+
/* Disable QSPI */
cadence_qspi_apb_controller_disable(priv->regbase);
--
2.2.0
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