From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Stein Subject: [PATCH 2/3] gpio: mcp23s08: Add simple IRQ support for SPI devices Date: Mon, 17 Nov 2014 09:38:10 +0100 Message-ID: <1416213491-9775-2-git-send-email-alexander.stein@systec-electronic.com> References: <1416213491-9775-1-git-send-email-alexander.stein@systec-electronic.com> Return-path: In-Reply-To: <1416213491-9775-1-git-send-email-alexander.stein@systec-electronic.com> Sender: linux-gpio-owner@vger.kernel.org To: Linus Walleij , Rob Herring , Pawel Moll Cc: Alexander Stein , devicetree@vger.kernel.org, linux-gpio@vger.kernel.org List-Id: devicetree@vger.kernel.org Currently this implementation only supports one IRQ for (all) SPI devices using the same chip select. Signed-off-by: Alexander Stein --- drivers/gpio/gpio-mcp23s08.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c index 9295b6e..529025e 100644 --- a/drivers/gpio/gpio-mcp23s08.c +++ b/drivers/gpio/gpio-mcp23s08.c @@ -935,11 +935,14 @@ static int mcp23s08_probe(struct spi_device *spi) return -ENOMEM; spi_set_drvdata(spi, data); + spi->irq = irq_of_parse_and_map(spi->dev.of_node, 0); + for (addr = 0; addr < ARRAY_SIZE(pdata->chip); addr++) { if (!(spi_present_mask & (1 << addr))) continue; chips--; data->mcp[addr] = &data->chip[chips]; + data->mcp[addr]->irq = spi->irq; status = mcp23s08_probe_one(data->mcp[addr], &spi->dev, spi, 0x40 | (addr << 1), type, pdata, addr); @@ -980,6 +983,8 @@ static int mcp23s08_remove(struct spi_device *spi) if (!data->mcp[addr]) continue; + if (spi->irq && data->mcp[addr]->irq_controller) + mcp23s08_irq_teardown(data->mcp[addr]); gpiochip_remove(&data->mcp[addr]->chip); } kfree(data); -- 2.0.4