From: Sowjanya Komatineni <skomatineni@nvidia.com>
Date: Wed, 27 Mar 2019 05:56:25 +0000 (-0700)
Subject: spi: tegra114: use packed mode for 32 bits per word
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=fc9ba6e3e28afcedf3bb3105b1d8cbc5c183c2a3;p=openwrt%2Fstaging%2Fblogic.git

spi: tegra114: use packed mode for 32 bits per word

Fixes: Use packed mode for 32 bits per word transfers to increase
performance as each packet is a full 32-bit word.

Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index a76acedd7e2f..929358e3487a 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -259,7 +259,7 @@ static unsigned tegra_spi_calculate_curr_xfer_param(
 
 	tspi->bytes_per_word = DIV_ROUND_UP(bits_per_word, 8);
 
-	if (bits_per_word == 8 || bits_per_word == 16) {
+	if (bits_per_word == 8 || bits_per_word == 16 || bits_per_word == 32) {
 		tspi->is_packed = 1;
 		tspi->words_per_32bit = 32/bits_per_word;
 	} else {