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authorMiquel Raynal <miquel.raynal@bootlin.com>2021-01-21 13:18:07 +0300
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2021-02-06 02:43:29 +0300
commitdd3c52846d5954acd43f0e771689302f27dadc28 (patch)
treeb09eed8836014c57e17a063f3bc4f843ad6da172 /drivers/i3c/master/Makefile
parentb8b0446f1f1afd58e5a9ba14ab2caa08797f3bb5 (diff)
downloadlinux-dd3c52846d5954acd43f0e771689302f27dadc28.tar.xz
i3c: master: svc: Add Silvaco I3C master driver
Add support for Silvaco I3C dual-role IP. The master role is supported in SDR mode only. I2C transfers have not been tested but are shared because they are very close to the I3C transfers in terms of register configuration. The IBI processing follows this logic: - When a slave advertizes an interrupt (SDA pulled low) an interrupt gets generated by the master. This time is unbounded and may be deferred. - The IRQ handler itself does not process anything: it only queues a work that will be run in non-atomic context. This is needed because short wait periods must be experienced. - The IBI job is divided in two parts: the first one is "critical" in the sense that it may not support getting interrupted. If this happens, after this first section the driver checks the master error register and depending on its content either flushes everything and errors out, or ends the processing (this second section may be interrupted). - If the critical section got interrupted, the slave will automatically respin it's IBI request when it will be allowed to. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20210121101808.14654-6-miquel.raynal@bootlin.com
Diffstat (limited to 'drivers/i3c/master/Makefile')
-rw-r--r--drivers/i3c/master/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/i3c/master/Makefile b/drivers/i3c/master/Makefile
index b892fd4cafad..b3fee0f690b2 100644
--- a/drivers/i3c/master/Makefile
+++ b/drivers/i3c/master/Makefile
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_CDNS_I3C_MASTER) += i3c-master-cdns.o
obj-$(CONFIG_DW_I3C_MASTER) += dw-i3c-master.o
+obj-$(CONFIG_SVC_I3C_MASTER) += svc-i3c-master.o
obj-$(CONFIG_MIPI_I3C_HCI) += mipi-i3c-hci/