From: Chris Packham <chris.packham-6g8wRflRTwXFdCa3tKVlE6U/zSkkHjvu@public.gmane.org>
To: andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [RFC PATCH v2 03/12] spi: spi-ep93xx: absorb the interrupt enable/disable helpers
Date: Fri, 28 Jul 2017 10:03:13 +1200 [thread overview]
Message-ID: <20170727220322.26654-4-chris.packham@alliedtelesis.co.nz> (raw)
In-Reply-To: <20170727220322.26654-1-chris.packham-6g8wRflRTwXFdCa3tKVlE6U/zSkkHjvu@public.gmane.org>
From: H Hartley Sweeten <hsweeten-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org>
These are each only called once. Just absorb them into the callers.
Signed-off-by: H Hartley Sweeten <hsweeten-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org>
---
drivers/spi/spi-ep93xx.c | 32 ++++++++++++--------------------
1 file changed, 12 insertions(+), 20 deletions(-)
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index dd179f3fbeeb..e8f454b55b69 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -111,24 +111,6 @@ struct ep93xx_spi {
/* converts bits per word to CR0.DSS value */
#define bits_per_word_to_dss(bpw) ((bpw) - 1)
-static void ep93xx_spi_enable_interrupts(const struct ep93xx_spi *espi)
-{
- unsigned int val;
-
- val = readl(espi->mmio + SSPCR1);
- val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
- writel(val, espi->mmio + SSPCR1);
-}
-
-static void ep93xx_spi_disable_interrupts(const struct ep93xx_spi *espi)
-{
- unsigned int val;
-
- val = readl(espi->mmio + SSPCR1);
- val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
- writel(val, espi->mmio + SSPCR1);
-}
-
/**
* ep93xx_spi_calc_divisors() - calculates SPI clock divisors
* @espi: ep93xx SPI controller struct
@@ -282,7 +264,12 @@ static void ep93xx_spi_pio_transfer(struct ep93xx_spi *espi)
* FIFO, enable interrupts, and wait for the transfer to complete.
*/
if (ep93xx_spi_read_write(espi)) {
- ep93xx_spi_enable_interrupts(espi);
+ unsigned int val;
+
+ val = readl(espi->mmio + SSPCR1);
+ val |= (SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
+ writel(val, espi->mmio + SSPCR1);
+
wait_for_completion(&espi->wait);
}
}
@@ -604,6 +591,7 @@ static int ep93xx_spi_transfer_one_message(struct spi_master *master,
static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
{
struct ep93xx_spi *espi = dev_id;
+ unsigned int val;
/*
* If we got ROR (receive overrun) interrupt we know that something is
@@ -635,8 +623,12 @@ static irqreturn_t ep93xx_spi_interrupt(int irq, void *dev_id)
* any case we disable interrupts and notify the worker to handle
* any post-processing of the message.
*/
- ep93xx_spi_disable_interrupts(espi);
+ val = readl(espi->mmio + SSPCR1);
+ val &= ~(SSPCR1_RORIE | SSPCR1_TIE | SSPCR1_RIE);
+ writel(val, espi->mmio + SSPCR1);
+
complete(&espi->wait);
+
return IRQ_HANDLED;
}
--
2.13.0
--
To unsubscribe from this list: send the line "unsubscribe linux-spi" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2017-07-27 22:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-27 22:03 [RFC PATCH v2 00/12] spi: moving to struct gpio_desc Chris Packham
[not found] ` <20170727220322.26654-1-chris.packham-6g8wRflRTwXFdCa3tKVlE6U/zSkkHjvu@public.gmane.org>
2017-07-27 22:03 ` [RFC PATCH v2 01/12] spi: spi-ep93xx: use 32-bit read/write for all registers Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 02/12] spi: spi-ep93xx: add spi master prepare_transfer_hardware() Chris Packham
2017-07-27 22:03 ` Chris Packham [this message]
2017-07-27 22:03 ` [RFC PATCH v2 04/12] spi: spi-ep93xx: pass the spi_master pointer around Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 05/12] spi: spi-ep93xx: remove private data 'current_msg' Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 06/12] spi: spi-ep93xx: use the default master transfer queueing mechanism Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 07/12] spi: use gpio_desc instead of numeric gpio Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 08/12] ARM: ep93xx: add gpiod_lookup_table for spi chip-selects Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 09/12] ARM: imx: " Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 10/12] spi: core: convert spi_master to use gpio_desc Chris Packham
[not found] ` <20170727220322.26654-11-chris.packham-6g8wRflRTwXFdCa3tKVlE6U/zSkkHjvu@public.gmane.org>
2017-11-24 12:59 ` Geert Uytterhoeven
2017-07-27 22:03 ` [RFC PATCH v2 11/12] ARM: ep93xx: remove chipselect from ep93xx_spi_info Chris Packham
2017-07-27 22:03 ` [RFC PATCH v2 12/12] wip: convert struct spi_device to gpio_desc Chris Packham
[not found] ` <20170727220322.26654-13-chris.packham-6g8wRflRTwXFdCa3tKVlE6U/zSkkHjvu@public.gmane.org>
2017-11-24 13:03 ` Geert Uytterhoeven
2017-07-29 13:15 ` [RFC PATCH v2 00/12] spi: moving to struct gpio_desc Andy Shevchenko
[not found] ` <CAHp75VeVijF13AO=SqkxtAaiYhss92gwrtCZ2WnxkkKtvjVS3A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-07-29 13:23 ` Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170727220322.26654-4-chris.packham@alliedtelesis.co.nz \
--to=chris.packham-6g8wrflrtwxfdca3tkvle6u/zskkhjvu@public.gmane.org \
--cc=andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).