From: Mark Brown <broonie@kernel.org> To: Tomer Maimon <tmaimon77@gmail.com> Cc: avifishman70@gmail.com, benjaminfair@google.com, broonie@kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, Mark Brown <broonie@kernel.org>, mark.rutland@arm.com, openbmc@lists.ozlabs.org, robh+dt@kernel.org, tali.perry1@gmail.com, venture@google.com, yuenn@google.com Subject: Applied "spi: npcm-pspi: improve spi transfer performance" to the spi tree Date: Fri, 17 Jan 2020 15:44:24 +0000 (GMT) [thread overview] Message-ID: <applied-20200115162301.235926-3-tmaimon77@gmail.com> (raw) In-Reply-To: <20200115162301.235926-3-tmaimon77@gmail.com> The patch spi: npcm-pspi: improve spi transfer performance has been applied to the spi tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-5.6 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark From b4adf5b27d59cdefff1e6fcba99151edea65a9f7 Mon Sep 17 00:00:00 2001 From: Tomer Maimon <tmaimon77@gmail.com> Date: Wed, 15 Jan 2020 18:22:59 +0200 Subject: [PATCH] spi: npcm-pspi: improve spi transfer performance Improving spi 8 bit per word mode transfer performance by using 16 bit per word transfer and receive when the data length is even and larger than one. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Link: https://lore.kernel.org/r/20200115162301.235926-3-tmaimon77@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org> --- drivers/spi/spi-npcm-pspi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/spi/spi-npcm-pspi.c b/drivers/spi/spi-npcm-pspi.c index fe624731c74c..d224aa63dbce 100644 --- a/drivers/spi/spi-npcm-pspi.c +++ b/drivers/spi/spi-npcm-pspi.c @@ -178,6 +178,13 @@ static void npcm_pspi_setup_transfer(struct spi_device *spi, priv->mode = spi->mode; } + /* + * If transfer is even length, and 8 bits per word transfer, + * then implement 16 bits-per-word transfer. + */ + if (priv->bits_per_word == 8 && !(t->len & 0x1)) + t->bits_per_word = 16; + if (!priv->is_save_param || priv->bits_per_word != t->bits_per_word) { npcm_pspi_set_transfer_size(priv, t->bits_per_word); priv->bits_per_word = t->bits_per_word; -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> To: Tomer Maimon <tmaimon77-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Cc: avifishman70-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, benjaminfair-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, mark.rutland-5wv7dgnIgG8@public.gmane.org, openbmc-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, tali.perry1-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, venture-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org, yuenn-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org Subject: Applied "spi: npcm-pspi: improve spi transfer performance" to the spi tree Date: Fri, 17 Jan 2020 15:44:24 +0000 (GMT) [thread overview] Message-ID: <applied-20200115162301.235926-3-tmaimon77@gmail.com> (raw) In-Reply-To: <20200115162301.235926-3-tmaimon77-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> The patch spi: npcm-pspi: improve spi transfer performance has been applied to the spi tree at https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-5.6 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark >From b4adf5b27d59cdefff1e6fcba99151edea65a9f7 Mon Sep 17 00:00:00 2001 From: Tomer Maimon <tmaimon77-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Date: Wed, 15 Jan 2020 18:22:59 +0200 Subject: [PATCH] spi: npcm-pspi: improve spi transfer performance Improving spi 8 bit per word mode transfer performance by using 16 bit per word transfer and receive when the data length is even and larger than one. Signed-off-by: Tomer Maimon <tmaimon77-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Link: https://lore.kernel.org/r/20200115162301.235926-3-tmaimon77-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Signed-off-by: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> --- drivers/spi/spi-npcm-pspi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/spi/spi-npcm-pspi.c b/drivers/spi/spi-npcm-pspi.c index fe624731c74c..d224aa63dbce 100644 --- a/drivers/spi/spi-npcm-pspi.c +++ b/drivers/spi/spi-npcm-pspi.c @@ -178,6 +178,13 @@ static void npcm_pspi_setup_transfer(struct spi_device *spi, priv->mode = spi->mode; } + /* + * If transfer is even length, and 8 bits per word transfer, + * then implement 16 bits-per-word transfer. + */ + if (priv->bits_per_word == 8 && !(t->len & 0x1)) + t->bits_per_word = 16; + if (!priv->is_save_param || priv->bits_per_word != t->bits_per_word) { npcm_pspi_set_transfer_size(priv, t->bits_per_word); priv->bits_per_word = t->bits_per_word; -- 2.20.1
next prev parent reply other threads:[~2020-01-17 15:45 UTC|newest] Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-01-15 16:22 [PATCH v1 0/4] spi: npcm-pspi: improve preformance modify reset and fix issue Tomer Maimon 2020-01-15 16:22 ` [PATCH v1 1/4] spi: npcm-pspi: fix 16 bit send and receive support Tomer Maimon 2020-01-15 16:22 ` Tomer Maimon 2020-01-17 15:44 ` Applied "spi: npcm-pspi: fix 16 bit send and receive support" to the spi tree Mark Brown 2020-01-17 15:44 ` Mark Brown 2020-01-15 16:22 ` [PATCH v1 2/4] spi: npcm-pspi: improve spi transfer performance Tomer Maimon 2020-01-15 16:22 ` Tomer Maimon 2020-01-17 15:44 ` Mark Brown [this message] 2020-01-17 15:44 ` Applied "spi: npcm-pspi: improve spi transfer performance" to the spi tree Mark Brown 2020-01-15 16:23 ` [PATCH v1 3/4] dt-binding: spi: add NPCM PSPI reset binding Tomer Maimon 2020-01-21 23:13 ` Rob Herring 2020-01-21 23:13 ` Rob Herring 2020-01-23 12:36 ` Applied "dt-binding: spi: add NPCM PSPI reset binding" to the spi tree Mark Brown 2020-01-23 12:36 ` Mark Brown 2020-01-15 16:23 ` [PATCH v1 4/4] spi: npcm-pspi: modify reset support Tomer Maimon 2020-01-15 16:23 ` Tomer Maimon 2020-01-17 15:44 ` Applied "spi: npcm-pspi: modify reset support" to the spi tree Mark Brown 2020-01-17 15:44 ` Mark Brown
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