openwrt/target/linux/lantiq/patches-4.9/0090-spi-add-transfer_status-callback.patch
Hauke Mehrtens 863e79f8d5 lantiq: add support for kernel 4.9
The following patches were dropped because they are already applied
upstream:
0012-pinctrl-lantiq-fix-up-pinmux.patch
0013-MTD-lantiq-xway-fix-invalid-operator.patch
0014-MTD-lantiq-xway-the-latched-command-should-be-persis.patch
0015-MTD-lantiq-xway-remove-endless-loop.patch
0016-MTD-lantiq-xway-add-missing-write_buf-and-read_buf-t.patch
0017-MTD-xway-fix-nand-locking.patch
0044-pinctrl-lantiq-introduce-new-dedicated-devicetree-bi.patch
0045-pinctrl-lantiq-Fix-GPIO-Setup-of-GPIO-Port3.patch
0046-pinctrl-lantiq-2-pins-have-the-wrong-mux-list.patch
0047-irq-fixes.patch
0047-mtd-plat-nand-pass-of-node.patch
0060-usb-dwc2-Add-support-for-Lantiq-ARX-and-XRX-SoCs.patch
0120-MIPS-lantiq-add-support-for-device-tree-file-from-bo.patch
0121-MIPS-lantiq-make-it-possible-to-build-in-no-device-t.patch
122-MIPS-store-the-appended-dtb-address-in-a-variable.patch

The PHY driver was reduced to the code adding the LED configuration,
the rest is already upstream:
0023-NET-PHY-adds-driver-for-lantiq-PHY11G.patch

The SPI driver was replaced with the version pending for upstream
inclusion:
New driver:
0090-spi-add-transfer_status-callback.patch
0091-spi-lantiq-ssc-add-support-for-Lantiq-SSC-SPI-controller.patch
Old driver:
0100-spi-add-support-for-Lantiq-SPI-controller.patch

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2017-02-11 23:44:13 +01:00

43 lines
1.6 KiB
Diff

--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1013,6 +1013,20 @@ static int spi_transfer_one_message(stru
msecs_to_jiffies(ms));
}
+ if (master->transfer_status) {
+ ret = master->transfer_status(master, ms);
+ if (ret) {
+ SPI_STATISTICS_INCREMENT_FIELD(statm,
+ errors);
+ SPI_STATISTICS_INCREMENT_FIELD(stats,
+ errors);
+ dev_err(&msg->spi->dev,
+ "SPI transfer status: %d\n",
+ ret);
+ goto out;
+ }
+ }
+
if (ms == 0) {
SPI_STATISTICS_INCREMENT_FIELD(statm,
timedout);
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -370,6 +370,8 @@ static inline void spi_unregister_driver
* transfer_one_message are mutually exclusive; when both
* are set, the generic subsystem does not call your
* transfer_one callback.
+ * @transfer_status: This callback allows the driver to return an error code
+ * in case the scheduled single spi transfer failed.
* @handle_err: the subsystem calls the driver to handle an error that occurs
* in the generic implementation of transfer_one_message().
* @unprepare_message: undo any work done by prepare_message().
@@ -546,6 +548,7 @@ struct spi_master {
void (*set_cs)(struct spi_device *spi, bool enable);
int (*transfer_one)(struct spi_master *master, struct spi_device *spi,
struct spi_transfer *transfer);
+ int (*transfer_status)(struct spi_master *master, unsigned long timeout);
void (*handle_err)(struct spi_master *master,
struct spi_message *message);