From: Paul Cercueil <paul@crapouillou.net>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alex Smith <alex@alex-smith.me.uk>
Cc: od@zcrc.me, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Paul Cercueil <paul@crapouillou.net>
Subject: [PATCH 3/4] memory: jz4780-nemc: Reduce size of const array
Date: Wed, 22 Aug 2018 19:29:52 +0200 [thread overview]
Message-ID: <20180822172953.11281-3-paul@crapouillou.net> (raw)
In-Reply-To: <20180822172953.11281-1-paul@crapouillou.net>
The maximum value found in that array is 15, there's no need to store
these values as uint32_t, a uint8_t is enough.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
drivers/memory/jz4780-nemc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/memory/jz4780-nemc.c b/drivers/memory/jz4780-nemc.c
index bcf06adefc96..ef3f20e46590 100644
--- a/drivers/memory/jz4780-nemc.c
+++ b/drivers/memory/jz4780-nemc.c
@@ -161,7 +161,7 @@ static bool jz4780_nemc_configure_bank(struct jz4780_nemc *nemc,
* Conversion of tBP and tAW cycle counts to values supported by the
* hardware (round up to the next supported value).
*/
- static const uint32_t convert_tBP_tAW[] = {
+ static const u8 convert_tBP_tAW[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
/* 11 - 12 -> 12 cycles */
@@ -232,7 +232,7 @@ static bool jz4780_nemc_configure_bank(struct jz4780_nemc *nemc,
return false;
}
- smcr |= convert_tBP_tAW[cycles] << NEMC_SMCR_TBP_SHIFT;
+ smcr |= (u32)convert_tBP_tAW[cycles] << NEMC_SMCR_TBP_SHIFT;
}
if (of_property_read_u32(node, "ingenic,nemc-tAW", &val) == 0) {
@@ -244,7 +244,7 @@ static bool jz4780_nemc_configure_bank(struct jz4780_nemc *nemc,
return false;
}
- smcr |= convert_tBP_tAW[cycles] << NEMC_SMCR_TAW_SHIFT;
+ smcr |= (u32)convert_tBP_tAW[cycles] << NEMC_SMCR_TAW_SHIFT;
}
if (of_property_read_u32(node, "ingenic,nemc-tSTRV", &val) == 0) {
--
2.18.0
next prev parent reply other threads:[~2018-08-22 17:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-22 17:29 [PATCH 1/4] dt-bindings: memory: jz4780-nemc: Add compatible string for JZ4725B Paul Cercueil
2018-08-22 17:29 ` [PATCH 2/4] memory: jz4780_nemc: Drop dependency on MACH_JZ4780, use COMPILE_TEST Paul Cercueil
2018-08-22 17:29 ` Paul Cercueil [this message]
2018-08-23 10:41 ` [PATCH 3/4] memory: jz4780-nemc: Reduce size of const array David Laight
2018-08-23 12:52 ` Paul Cercueil
2018-08-31 12:18 ` Rob Herring
2018-08-22 17:29 ` [PATCH 4/4] memory: jz4780_nemc: Add support for the JZ4725B Paul Cercueil
2019-01-17 22:45 [PATCH 1/4] dt-bindings: memory: jz4780: Add compatible string for JZ4725B SoC Paul Cercueil
2019-01-17 22:45 ` [PATCH 3/4] memory: jz4780-nemc: Reduce size of const array Paul Cercueil
2019-01-18 8:15 ` Boris Brezillon
2019-01-18 14:10 ` Paul Cercueil
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