diff options
Diffstat (limited to 'target/linux/ath79/patches-5.10/403-v5.17-spi-ar934x-fix-transfer-size.patch')
| -rw-r--r-- | target/linux/ath79/patches-5.10/403-v5.17-spi-ar934x-fix-transfer-size.patch | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/target/linux/ath79/patches-5.10/403-v5.17-spi-ar934x-fix-transfer-size.patch b/target/linux/ath79/patches-5.10/403-v5.17-spi-ar934x-fix-transfer-size.patch deleted file mode 100644 index 87f5da2c60..0000000000 --- a/target/linux/ath79/patches-5.10/403-v5.17-spi-ar934x-fix-transfer-size.patch +++ /dev/null @@ -1,62 +0,0 @@ -From ebe33e5a98dcf14a9630845f3f10c193584ac054 Mon Sep 17 00:00:00 2001 -From: Oskari Lemmela <oskari@lemmela.net> -Date: Wed, 22 Dec 2021 07:59:57 +0200 -Subject: [PATCH] spi: ar934x: fix transfer size - -If bits_per_word is configured, transfer only word amount -of data per iteration. - -Signed-off-by: Oskari Lemmela <oskari@lemmela.net> -Link: https://lore.kernel.org/r/20211222055958.1383233-2-oskari@lemmela.net -Signed-off-by: Mark Brown <broonie@kernel.org> ---- - drivers/spi/spi-ar934x.c | 16 +++++++++++----- - 1 file changed, 11 insertions(+), 5 deletions(-) - ---- a/drivers/spi/spi-ar934x.c -+++ b/drivers/spi/spi-ar934x.c -@@ -82,7 +82,7 @@ static int ar934x_spi_transfer_one_messa - struct spi_device *spi = m->spi; - unsigned long trx_done, trx_cur; - int stat = 0; -- u8 term = 0; -+ u8 bpw, term = 0; - int div, i; - u32 reg; - const u8 *tx_buf; -@@ -90,6 +90,11 @@ static int ar934x_spi_transfer_one_messa - - m->actual_length = 0; - list_for_each_entry(t, &m->transfers, transfer_list) { -+ if (t->bits_per_word >= 8 && t->bits_per_word < 32) -+ bpw = t->bits_per_word >> 3; -+ else -+ bpw = 4; -+ - if (t->speed_hz) - div = ar934x_spi_clk_div(sp, t->speed_hz); - else -@@ -105,10 +110,10 @@ static int ar934x_spi_transfer_one_messa - iowrite32(reg, sp->base + AR934X_SPI_REG_CTRL); - iowrite32(0, sp->base + AR934X_SPI_DATAOUT); - -- for (trx_done = 0; trx_done < t->len; trx_done += 4) { -+ for (trx_done = 0; trx_done < t->len; trx_done += bpw) { - trx_cur = t->len - trx_done; -- if (trx_cur > 4) -- trx_cur = 4; -+ if (trx_cur > bpw) -+ trx_cur = bpw; - else if (list_is_last(&t->transfer_list, &m->transfers)) - term = 1; - -@@ -193,7 +198,8 @@ static int ar934x_spi_probe(struct platf - ctlr->mode_bits = SPI_LSB_FIRST; - ctlr->setup = ar934x_spi_setup; - ctlr->transfer_one_message = ar934x_spi_transfer_one_message; -- ctlr->bits_per_word_mask = SPI_BPW_MASK(8); -+ ctlr->bits_per_word_mask = SPI_BPW_MASK(32) | SPI_BPW_MASK(24) | -+ SPI_BPW_MASK(16) | SPI_BPW_MASK(8); - ctlr->dev.of_node = pdev->dev.of_node; - ctlr->num_chipselect = 3; - |