linux-kernel - [PATCH] i3c/master/mipi-i3c-hci: Specify HAS

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Message-Id: <20210127040636.1535722-1-davidgow@google.com>
Date:   Tue, 26 Jan 2021 20:06:37 -0800
From:   David Gow <davidgow@...gle.com>
To:     Nicolas Pitre <npitre@...libre.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Boris Brezillon <boris.brezillon@...labora.com>
Cc:     David Gow <davidgow@...gle.com>, linux-i3c@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] i3c/master/mipi-i3c-hci: Specify HAS_IOMEM dependency

The MIPI i3c HCI driver makes use of IOMEM functions like
devm_platform_ioremap_resource(), which are only available if
CONFIG_HAS_IOMEM is defined.

This causes the driver to be enabled under make ARCH=um allyesconfig,
even though it won't build.

By adding a dependency on HAS_IOMEM, the driver will not be enabled on
architectures which don't support it.

Fixes: 9ad9a52cce28 ("i3c/master: introduce the mipi-i3c-hci driver")
Signed-off-by: David Gow <davidgow@...gle.com>
---
 drivers/i3c/master/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i3c/master/Kconfig b/drivers/i3c/master/Kconfig
index e68f15f4b4d0..afff0e2320f7 100644
--- a/drivers/i3c/master/Kconfig
+++ b/drivers/i3c/master/Kconfig
@@ -25,6 +25,7 @@ config DW_I3C_MASTER
 config MIPI_I3C_HCI
 	tristate "MIPI I3C Host Controller Interface driver (EXPERIMENTAL)"
 	depends on I3C
+	depends on HAS_IOMEM
 	help
 	  Support for hardware following the MIPI Aliance's I3C Host Controller
 	  Interface specification.
-- 
2.30.0.280.ga3ce27912f-goog